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I have a problem, when I test my iOS App on a real device or when I testing it in the simulator all is working as expected, but when I submit the app to TestFlight and I want to open it on my device the app is instantly crashing on launch. My last changes on the app was that I added the option that the user can pick another App Icon, nothing else. But now the app is crashing in TestFlight. Anybody has an idea what I can do?
Sometimes I get this error:
<NSError: 0x28227d6e0; domain: BSServiceConnectionErrorDomain; code: 3 (OperationFailed); reason: "XPC error received on message reply handler">;and thisMultiple RBSRunningReasonAttribute provided: 13 vs 20254. First one wins, but client should be fixed for assertion 31-112-6223`
I already tried to changes Scheme to Release but nothing changes still works on the simulator and the real device.
Sometimes when I run an application on device from Xcode I would try to access the keychain but fail due to error -34018. This doesn't match any of the documented keychain error codes and can't be consistently reproduced. (happens maybe 30% of the time, and it's not clear to me why it happens). What makes debugging this problem very difficult is the total lack of documentation. Any idea what causes this and how to fix it? I'm using Xcode 5 and running iOS 7.0.4 on device.
There is an open issue about this here: https://github.com/soffes/sskeychain/issues/52
EDIT: Adding keychain access code per request
I'm using the SSKeychain library for interfacing with keychain. Here's the snippet.
#define SERVICE #"default"
#implementation SSKeychain (EXT)
+ (void)setValue:(NSString *)value forKey:(NSString *)key {
NSError *error = nil;
BOOL success = NO;
if (value) {
success = [self setPassword:value forService:SERVICE account:key error:&error];
} else {
success = [self deletePasswordForService:SERVICE account:key error:&error];
}
NSAssert(success, #"Unable to set keychain value %# for key %# error %#", value, key, error);
if (!success) {
LogError(#"Unable to set value to keychain %#", error);
}
LogTrace(#"Will set keychain account %#. is to nil? %d", key, value == nil);
if (value == nil)
LogWarn(#"Setting keychain %# to nil!!!", key);
}
+ (NSString *)valueForKey:(NSString *)key {
NSError *error = nil;
NSString *value = [self passwordForService:SERVICE account:key error:&error];
if (error && error.code != errSecItemNotFound) {
NSAssert(!error, #"Unable to retrieve keychain value for key %# error %#", key, error);
LogError(#"Unable to retrieve keychain value for key %# error %#", key, error);
}
return value;
}
+ (BOOL)removeAllValues {
LogInfo(#"Completely Reseting Keychain");
return [[self accountsForService:SERVICE] all:^BOOL(NSDictionary *accountInfo) {
return [self deletePasswordForService:SERVICE account:accountInfo[#"acct"]];
}];
}
#end
Vast majority of the time it's just fine. Sometimes I'll hit the assertion failures where I'm unable to either write to or read from keychain, causing critical assertion failure.
iOS 10 / XCode 8 Fix:
Add KeyChain Entitlement, Go to project
settings->Capabilities->Keychain Sharing->Add Keychain Groups+Turn On
An answer here, from Apple:
UPDATE: We have finally been able to reproduce the -34018 error on iOS
8.3. This is the first step in identifying the root cause and then coming up with a fix.
As usual, we can't commit to a release timeframe, but this has
affected many developers and we really want to get this resolved.
Earlier I suggested adding a small delay in
application:didFinishLaunchingWithOptions and
applicationDidBecomeActive: before accessing the keychain as a
workaround. However, that doesn't actually appear to help. That means
that there's no known workaround at this time other than relaunching
the app.
The issue appears to be related to memory pressure, so perhaps being
more aggressive in handling memory warnings may alleviate the problem
https://forums.developer.apple.com/thread/4743#14441
UPDATE
OK, here’s the latest.
This is a complex problem with multiple
possible causes:
Some instances of the problem are caused by incorrect
app signing. You can easily distinguish this case because the problem
is 100% reproducible.
Some instances of the problem are caused by a
bug in how iOS supports app development (r. 23,991,853). Debugging
this was complicated by the fact that another bug in the OS (r.
23,770,418) masked its effect, meaning the problem only cropped up
when the device was under memory pressure. We believe these problems
were resolved in iOS 9.3.
We suspect that there may be yet more causes
of this problem.
So, if you see this problem on a user device (one
that hasn’t been talked to by Xcode) that’s running iOS 9.3 or later,
please do file a bug report about it. Try to include the device
system log in your bug report (I realise that can be tricky when
dealing with customer devices; one option is to ask the customer to
install Apple Configurator, which lets them view the system log). And
if you do file a bug, please post your bug number, just for the
record.
On behalf of Apple I’d like to thank everyone for their
efforts in helping to track down this rather horrid issue. Share and
Enjoy
https://forums.developer.apple.com/thread/4743#126088
Basically you have to codesign your .xcttest folder by adding the following as a run script in your test target.
codesign --verify --force --sign "$CODE_SIGN_IDENTITY" "$CODESIGNING_FOLDER_PATH"
I got a lot of -34018 errors when testing my keychain on the device and this managed to fix it.
If the problem does not exist in your test target this is probably not the solution.
After inspecting the source code. I have noticed that the keychain features are accessed through a security daemon that runs in its own process (separated from the app process).
Your app and the securityd process 'talk' together through a technology called XPC.
If necessary, the securityd is launched via the well-known launchd command by XPC. You can probably check that the daemon is running in the Activity Monitor App (if running in Simulator of course) and that its parent process is launchd.
My guess here is that it is possible that for any unknown reason the security daemon fails to start or do it too slowly and is not ready when you try to use it.
Maybe you could think on how to pre-launch the daemon.
I apologize for not being more precise. I hope it could help you to go a bite further in your investigations.
I’m observing similar behavior after building and running my code in Xcode 6 beta with iOS 8 SDK (it’s working correctly with Xcode 5 / iOS 7). In Xcode 6, in iOS Simulator SecItemCopyMatching always returns -34018. It started working after turning on the “Keychain Sharing” in Capabilities tab.
However I have another issue. I’m developing static library, that is used by (among others) Demo application. The above solution works for Demo application project, but when I try to unit test my static library project, I have exactly the same error. And the problem is that my static library project doesn’t have the Capabilities tab (as it’s not the standalone application).
I’ve tried the solution posted here by JorgeDeCorte, with codesigning in the test target, but it doesn’t work for me.
Try disabling all breakpoints when launching the app from Xcode.
You can enable them afterwards.
(None of the above workarounds worked for me)
I just had the same issue on the simulator running 7.1 & 8.0. While doing some digging, I noticed that the Apple sample app had KeyChain Sharing turned on for its target capabilities. I turned it on for my app which resulted in creating an entitlement file that I left with the default values and now I am not getting anymore -34018 errors. This is not ideal but I will live the KeyChain sharing option for now.
Codesigning a .xctest bundle isn't as easy as it sounds in some cases. Principally JorgeDeCorte is right with his answer that the given short line as a Run Script is enough for most of the devs.
codesign --verify --force --sign "$CODE_SIGN_IDENTITY" "$CODESIGNING_FOLDER_PATH"
But when you have multiple certificates in your keychain this will fail with the following line
iPhone Developer: ambiguous (matches "iPhone Developer: Your Name (ABC123DEF45)" and "iPhone Developer: Your Name (123ABC456DE)"
A solution to get the right certificate even with multiple ones is this short script. For sure this is not ideal, but as of my knowledge you have no chance to get the certificate that Xcode found and uses for signing your .app.
echo "codesign --verify --force --sign \"$CODE_SIGN_IDENTITY\" \"$CODESIGNING_FOLDER_PATH\""
IDENTITIES=`security find-identity -v -s "Code Signing" | grep "iPhone Developer" | awk '{ print $2 }'`
for SHA in $IDENTITIES; do
codesign --verify --force --sign $SHA "$CODESIGNING_FOLDER_PATH"
if [ $? -eq 0 ]; then
echo "Matching identity found: $SHA"
exit 0
fi
done;
exit 1
I got bitten by this, too and had no success with any of the other workarounds.
I then cleaned up my provisioning profiles on the devices itself by deleting all of them related to my app as well as all the wildcard profiles (this seems to be the point).
To do this, go to the "Devices" Window in Xcode and right-click your (connected) phone:
Click on "Show provisioning profiles" and delete the related ones, and especially the team profiles:
including the ones with the asterisk.
After reinstallation the app, everything went back to normal.
I have fixed this problem (I think). I had a wildcard provisioning profile on my device that showed it did not have a valid signing identity. I also had a provisioning profile for my app that was valid. When I deleted the wildcard profile, I stopped getting the -34018 errors.
I also made sure that the code signing identity and provisioning profile listed in the Code Signing section of the Build Settings of the target were identical to the one for the app (not the generic "iPhone Developer" one)
I was getting -34018 error in my app (iOS 8.4) very rarely. After some investigation I've found that this issue occurs when the app requests data from keychain too often.
For example, in my situation it was two read requests for one specific key at the same time from different application modules.
To fix that I've just added caching this value in memory
I was having the same problem, out of the blue, running on a test device with Xcode 6.2, iPhone 6, iOS 8.3. To be clear, this was not experienced while running Xcode tests, but rather while running the actual app on my device. In the simulator it was fine, and running on the app itself it had been perfectly fine until recently.
I tried all of the suggestions I could find here, such as removing the provisioning profiles on my device (I removed ALL of them), temporarily enabling the Keychain Sharing capability in my project (even though we don't really need that), making sure my development account in Xcode was totally refreshed with all of the certificates and provisioning profiles, etc. Nothing helped.
Then I temporarily changed the accessibility level from kSecAttrAccessibleAfterFirstUnlock to kSecAttrAccessibleAlwaysThisDeviceOnly, ran the app, and it worked fine and was able to write to the Keychain. Then I changed it back to kSecAttrAccessibleAfterFirstUnlock, and the problem seems to have gone away "permanently."
Just got bitten by this bug on Xcode 8 Beta 3. Turning on Keychain Sharing seems to be the only solution.
I had the same issue. Fixed it by setting up Keychain Sharing.
(this is not a direct answer to the OP's question, but might help others)
Started getting the keychain error -34018 consistently in simulator after updating Xcode from version 7.3.1 to 8.0.
Following this tip from daidai's answer,
Some instances of the problem are caused by incorrect app signing. You can easily distinguish this case because the problem is 100% reproducible.
it was discovered that Provisioning Profile had somehow been set to None in the Signing sections of the target.
However, setting the Provisioning Profile fields to valid values was not sufficient to resolve the issue in this case.
Further investigation showed that the Push Notifications entitlement also displayed an error. It said the "Add the Push Notifications feature to your App ID." step was completed, but step "Add the Push Notifications entitlement to your entitlements file" was not.
After pressing "Fix Issue" to fix the Push Notification issue, the keychain error was resolved.
For this particular target, the "Keychain Sharing" entitlement had already been turned on at some previous time. Turning it off has not caused the keychain error to reappear so far, so its not clear whether it is necessary in this case.
In iOS 9 I turned off Address Sanitizer and it started working on the device.
The only solution that worked for me was first storing nil for the specified key, and then storing my new value with a separate operation. It would fail due to error -34018 if I attempted to overwrite the existing value. But as long as I stored nil first, then the updated value would be stored successfully immediately afterwards.
I met this -34018 issue today when running SecItemDelete API.
What I did to fix this is:
1. Following #k1th solution https://stackoverflow.com/a/33085955/889892
2. Run the SecItemDelete in main thread(Previously it's read from main thread, so just align this with deleting).
Sorry it comes back again :(
Turn on Keychain sharing in your project's capabilities, it should solve the problem.
What worked for me
Turn on Keychain Sharing.
Use the keychain as less as possible and cache the data in memory, UserPreferences, disk, etc.
Retry many times the keychain CRUD operations if these failed.
Use DispatchQueue.sync for storing/deleting/updating the data.
For me it was an app signing issue. I simply switched to the correct signing team in Xcode and the error no longer occurred
I have an iOS application that stores some sensitive information in the keychain.
While writing values into the keychain, I am getting error code -34018.
I am currently using Apple's iOS KeyChainItemWrapper class.
Both of the following lines of code receive the same error code.
OSStatus res1 = SecItemCopyMatching((__bridge CFDictionaryRef)genericPasswordQuery, (CFTypeRef *)&attributes);
OSStatus res = SecItemUpdate((__bridge CFDictionaryRef)updateItem, (__bridge CFDictionaryRef)tempCheck);
This issue does not occur every time, but intermittently. Once I get this error, I am no longer able to write any values to the keychain.
I have printed the error description like so:
NSError *error = [NSError errorWithDomain:NSOSStatusErrorDomain code:res userInfo:nil];
and this is what the error prints out:
Error: Error Domain=NSOSStatusErrorDomain Code=-34018 "The operation couldn’t be completed. (OSStatus error -34018.)"
Seems like this is a bug in Keychain, which only appears when you launch your app from xcode. See here: https://github.com/soffes/sskeychain/issues/52
We debugged it a lot and it seems an issue accessing the keychain when
the app is launched from the background. This is only happening with
the debugger (i.e. when launched from Xcode). We think the issue
might be related in our case to the debugger keeping alive the app
even if it should be killed by the OS. We tried in fact to run the
app and then put it in background and launch many other app to occupy
RAM. With the debugger the bug came up when resuming the app from the
background, while without the debugger it didn't (we did run at least
10 tests each).
If someone will come here back with this error and XCode8 with iOS10, probably you have to enable KeyChain Share in the tab Capabilities:
As others have mentioned, this is a Keychain bug, one that Apple is aware of and has been aware of since at least mid-2015.
As of March 22, 2016, however, Apple has said:
We believe these problems were resolved in iOS 9.3.
iOS 9.3 was released on March 21, 2016.
See the thread: https://forums.developer.apple.com/thread/4743
To quote the response by an Apple employee:
Mar 22, 2016 3:28 AM
OK, here’s the latest. This is a complex problem with multiple possible causes:
Some instances of the problem are caused by incorrect app signing. You can easily distinguish this case because the problem is 100% reproducible.
Some instances of the problem are caused by a bug in how iOS supports app development (r. 23,991,853). Debugging this was complicated by the fact that another bug in the OS (r. 23,770,418) masked its effect, meaning the problem only cropped up when the device was under memory pressure.
We believe these problems were resolved in iOS 9.3.
We suspect that there may be yet more causes of this problem.
So, if you see this problem on a user device (one that hasn’t been talked to by Xcode) that’s running iOS 9.3 or later, please do file a bug report about it. Try to include the device system log in your bug report (I realise that can be tricky when dealing with customer devices; one option is to ask the customer to install Apple Configurator, which lets them view the system log). And if you do file a bug, please post your bug number, just for the record.
On behalf of Apple I’d like to thank everyone for their efforts in helping to track down this rather horrid issue.
Share and Enjoy
This held me up for 2 hours before I found a quick "fix" - reboot the iOS device
A quote from the discussion at http://forums.developer.apple.com/thread/4743,
From user littledetails
As others have reported, this mysterious keychain error is most easily observable when launching via Xcode with the debugger attached. Once the error starts occurring, the keychain doesn't seem to right itself regardless of memory pressure until one reboots the device.
When I rebooted my device the error went away, allowing me to continue testing. Not sure what else to do. In my situation, moving to NSUserDefaults or some other storage solution was not a possibility.
One way to get around this issue with the keychain is to use dispatch_async to allow the app to launch. This works when the app is opened from the background. Also make sure you have the kSecAttrAccessibleAfterFirstUnlock accessibility setting on the keychain.
dispatch_async(dispatch_get_main_queue(), ^{
// save/write to keychain
})
I am using GenericKeychain classes from apple:
https://developer.apple.com/library/content/samplecode/GenericKeychain/Introduction/Intro.html#//apple_ref/doc/uid/DTS40007797-Intro-DontLinkElementID_2
struct KeychainConfiguration {
static let serviceName = "MyAppService"
/*
Specifying an access group to use with `KeychainPasswordItem` instances will create items shared accross both apps.
For information on App ID prefixes, see:
https://developer.apple.com/library/ios/documentation/General/Conceptual/DevPedia-CocoaCore/AppID.html
and:
https://developer.apple.com/library/ios/technotes/tn2311/_index.html
*/
// static let accessGroup = "[YOUR APP ID PREFIX].com.example.apple-samplecode.GenericKeychainShared"
/*
Not specifying an access group to use with `KeychainPasswordItem` instances
will create items specific to each app.
*/
static let accessGroup: String? = nil
}
In this file I was specifying my custom accessGroup in this line static let accessGroup = "[YOUR APP ID PREFIX].com.example.apple-samplecode.GenericKeychainShared"
After returning to static let accessGroup: String? = nil the problem was gone. :)
Make sure keychain sharing must on under Capabilities in project Target.
In my case the App_Name.entitlements file has different bundle id than of my project bundle id. So, I change bundle id in the App_Name.entitlements file as of my project bundle id.
e.g., Suppose your project bundle id is com.Apple.testApp then got to
App_Name.entitlements file open key Keychain Access Groups key which is of Array type.
Under item0 set value of your project bundle id as eg:- $(AppIdentifierPrefix)com.Apple.testAp.
According to #iCaramba's answer. I've found a workaround:
Stop the task to kill the app (if you are already running the app)
Launch the app on your device manually. DO NOT use Xcode
Use Xcode to re-launch the app
I am having a hard time to get HealthKit working for my iOS App. I have done all the steps I have found so far and none seem to solve my problem I keep getting this error when trying to authorize Healthkit:
Error Domain=com.apple.healthkit Code=4 "Missing com.apple.developer.healthkit entitlement." UserInfo=0x78fa24e0 {NSLocalizedDescription=Missing com.apple.developer.healthkit entitlement.}
Here is my code asking for authorization:
if([HKHealthStore isHealthDataAvailable]) {
self.healthStore = [[HKHealthStore alloc] init];
[self.healthStore requestAuthorizationToShareTypes:nil readTypes:[self dataTypesToRead] completion:^(BOOL success, NSError *error) {
if (!success) {
NSLog(#"HK Error: %#", error);
[self presentHealthAlert:#"You didn't allow APP to access HealthKit Data. Please go to Settings and set up APP permissions." withTitle:#"Error"];
} else {
[self presentHealthAlert:#"Thank You For Access" withTitle:#"Success"];
}
}];
} else {
[self presentHealthAlert:#"Health Data Not Available" withTitle:#"Success"];
}
And Yes, I have enabled it on my project Capabilites, and yes I have enabled it in my Dev Center App ID. Is there anything else I might be missing?
I had this problem with a watchOS 2 app. The resolution was to ensure I had enabled the HealthKit entitlement for both the iOS app and the watch extension.
I had wrongly assumed the switch for the iOS app would be inherited by the watch extension.
You have to make sure that you click on your program on the left side of Xcode (the top of your file hierarchy). You'll come to a general settings screen in the main window (to the right) where you will see your bundle identifier, deployment target, and additional settings. Click on the tab at the top that says Capabilities. Now you will see a toggleable list which includes HealthKit. You have to activate it here before you can use it in the app.
Edit: Here is an image from Xcode that might help you find this if you're not familiar with setting dependencies or other program specific settings.
It is in this list on the right, towards the bottom you'll see HealthKit. It will check several things once you toggle it on and verify that you can use it.
A bit old, but for anyone else who has issues, I had to manually refresh my provisioning profiles as well in XCode 6.2 (Preferences -> Accounts).
I ended up here after reaching my wit's end. Nothing worked and I clearly had the HealthKit entitlement enabled so finally I just restarted the phone. Voilà. Restarting cleared the missing entitlement errors.
Click on the Watch App Extension target.
Tap on the Capabilities.
Scroll down to the bottom and turn on the HealthKit.
I managed to get my entitlement working by ensuring that I had a device registered. Once I got my iPhone showing under the simulator and I didnt have any unresolved issues under the identity section of the app it all loaded ok.
You may find that although you have turned on the HealthKit entitlement on in xcode that there is a second entitlements file that does not contain the healthkit boolean. I found that while the obvious entitlements file (at the top level) had the correct information, a different entitlements file had been created under Resources that did not contain the healthkit entitlement. fixing that file fixed my problem.
Sometimes when I run an application on device from Xcode I would try to access the keychain but fail due to error -34018. This doesn't match any of the documented keychain error codes and can't be consistently reproduced. (happens maybe 30% of the time, and it's not clear to me why it happens). What makes debugging this problem very difficult is the total lack of documentation. Any idea what causes this and how to fix it? I'm using Xcode 5 and running iOS 7.0.4 on device.
There is an open issue about this here: https://github.com/soffes/sskeychain/issues/52
EDIT: Adding keychain access code per request
I'm using the SSKeychain library for interfacing with keychain. Here's the snippet.
#define SERVICE #"default"
#implementation SSKeychain (EXT)
+ (void)setValue:(NSString *)value forKey:(NSString *)key {
NSError *error = nil;
BOOL success = NO;
if (value) {
success = [self setPassword:value forService:SERVICE account:key error:&error];
} else {
success = [self deletePasswordForService:SERVICE account:key error:&error];
}
NSAssert(success, #"Unable to set keychain value %# for key %# error %#", value, key, error);
if (!success) {
LogError(#"Unable to set value to keychain %#", error);
}
LogTrace(#"Will set keychain account %#. is to nil? %d", key, value == nil);
if (value == nil)
LogWarn(#"Setting keychain %# to nil!!!", key);
}
+ (NSString *)valueForKey:(NSString *)key {
NSError *error = nil;
NSString *value = [self passwordForService:SERVICE account:key error:&error];
if (error && error.code != errSecItemNotFound) {
NSAssert(!error, #"Unable to retrieve keychain value for key %# error %#", key, error);
LogError(#"Unable to retrieve keychain value for key %# error %#", key, error);
}
return value;
}
+ (BOOL)removeAllValues {
LogInfo(#"Completely Reseting Keychain");
return [[self accountsForService:SERVICE] all:^BOOL(NSDictionary *accountInfo) {
return [self deletePasswordForService:SERVICE account:accountInfo[#"acct"]];
}];
}
#end
Vast majority of the time it's just fine. Sometimes I'll hit the assertion failures where I'm unable to either write to or read from keychain, causing critical assertion failure.
iOS 10 / XCode 8 Fix:
Add KeyChain Entitlement, Go to project
settings->Capabilities->Keychain Sharing->Add Keychain Groups+Turn On
An answer here, from Apple:
UPDATE: We have finally been able to reproduce the -34018 error on iOS
8.3. This is the first step in identifying the root cause and then coming up with a fix.
As usual, we can't commit to a release timeframe, but this has
affected many developers and we really want to get this resolved.
Earlier I suggested adding a small delay in
application:didFinishLaunchingWithOptions and
applicationDidBecomeActive: before accessing the keychain as a
workaround. However, that doesn't actually appear to help. That means
that there's no known workaround at this time other than relaunching
the app.
The issue appears to be related to memory pressure, so perhaps being
more aggressive in handling memory warnings may alleviate the problem
https://forums.developer.apple.com/thread/4743#14441
UPDATE
OK, here’s the latest.
This is a complex problem with multiple
possible causes:
Some instances of the problem are caused by incorrect
app signing. You can easily distinguish this case because the problem
is 100% reproducible.
Some instances of the problem are caused by a
bug in how iOS supports app development (r. 23,991,853). Debugging
this was complicated by the fact that another bug in the OS (r.
23,770,418) masked its effect, meaning the problem only cropped up
when the device was under memory pressure. We believe these problems
were resolved in iOS 9.3.
We suspect that there may be yet more causes
of this problem.
So, if you see this problem on a user device (one
that hasn’t been talked to by Xcode) that’s running iOS 9.3 or later,
please do file a bug report about it. Try to include the device
system log in your bug report (I realise that can be tricky when
dealing with customer devices; one option is to ask the customer to
install Apple Configurator, which lets them view the system log). And
if you do file a bug, please post your bug number, just for the
record.
On behalf of Apple I’d like to thank everyone for their
efforts in helping to track down this rather horrid issue. Share and
Enjoy
https://forums.developer.apple.com/thread/4743#126088
Basically you have to codesign your .xcttest folder by adding the following as a run script in your test target.
codesign --verify --force --sign "$CODE_SIGN_IDENTITY" "$CODESIGNING_FOLDER_PATH"
I got a lot of -34018 errors when testing my keychain on the device and this managed to fix it.
If the problem does not exist in your test target this is probably not the solution.
After inspecting the source code. I have noticed that the keychain features are accessed through a security daemon that runs in its own process (separated from the app process).
Your app and the securityd process 'talk' together through a technology called XPC.
If necessary, the securityd is launched via the well-known launchd command by XPC. You can probably check that the daemon is running in the Activity Monitor App (if running in Simulator of course) and that its parent process is launchd.
My guess here is that it is possible that for any unknown reason the security daemon fails to start or do it too slowly and is not ready when you try to use it.
Maybe you could think on how to pre-launch the daemon.
I apologize for not being more precise. I hope it could help you to go a bite further in your investigations.
I’m observing similar behavior after building and running my code in Xcode 6 beta with iOS 8 SDK (it’s working correctly with Xcode 5 / iOS 7). In Xcode 6, in iOS Simulator SecItemCopyMatching always returns -34018. It started working after turning on the “Keychain Sharing” in Capabilities tab.
However I have another issue. I’m developing static library, that is used by (among others) Demo application. The above solution works for Demo application project, but when I try to unit test my static library project, I have exactly the same error. And the problem is that my static library project doesn’t have the Capabilities tab (as it’s not the standalone application).
I’ve tried the solution posted here by JorgeDeCorte, with codesigning in the test target, but it doesn’t work for me.
Try disabling all breakpoints when launching the app from Xcode.
You can enable them afterwards.
(None of the above workarounds worked for me)
I just had the same issue on the simulator running 7.1 & 8.0. While doing some digging, I noticed that the Apple sample app had KeyChain Sharing turned on for its target capabilities. I turned it on for my app which resulted in creating an entitlement file that I left with the default values and now I am not getting anymore -34018 errors. This is not ideal but I will live the KeyChain sharing option for now.
Codesigning a .xctest bundle isn't as easy as it sounds in some cases. Principally JorgeDeCorte is right with his answer that the given short line as a Run Script is enough for most of the devs.
codesign --verify --force --sign "$CODE_SIGN_IDENTITY" "$CODESIGNING_FOLDER_PATH"
But when you have multiple certificates in your keychain this will fail with the following line
iPhone Developer: ambiguous (matches "iPhone Developer: Your Name (ABC123DEF45)" and "iPhone Developer: Your Name (123ABC456DE)"
A solution to get the right certificate even with multiple ones is this short script. For sure this is not ideal, but as of my knowledge you have no chance to get the certificate that Xcode found and uses for signing your .app.
echo "codesign --verify --force --sign \"$CODE_SIGN_IDENTITY\" \"$CODESIGNING_FOLDER_PATH\""
IDENTITIES=`security find-identity -v -s "Code Signing" | grep "iPhone Developer" | awk '{ print $2 }'`
for SHA in $IDENTITIES; do
codesign --verify --force --sign $SHA "$CODESIGNING_FOLDER_PATH"
if [ $? -eq 0 ]; then
echo "Matching identity found: $SHA"
exit 0
fi
done;
exit 1
I got bitten by this, too and had no success with any of the other workarounds.
I then cleaned up my provisioning profiles on the devices itself by deleting all of them related to my app as well as all the wildcard profiles (this seems to be the point).
To do this, go to the "Devices" Window in Xcode and right-click your (connected) phone:
Click on "Show provisioning profiles" and delete the related ones, and especially the team profiles:
including the ones with the asterisk.
After reinstallation the app, everything went back to normal.
I have fixed this problem (I think). I had a wildcard provisioning profile on my device that showed it did not have a valid signing identity. I also had a provisioning profile for my app that was valid. When I deleted the wildcard profile, I stopped getting the -34018 errors.
I also made sure that the code signing identity and provisioning profile listed in the Code Signing section of the Build Settings of the target were identical to the one for the app (not the generic "iPhone Developer" one)
I was getting -34018 error in my app (iOS 8.4) very rarely. After some investigation I've found that this issue occurs when the app requests data from keychain too often.
For example, in my situation it was two read requests for one specific key at the same time from different application modules.
To fix that I've just added caching this value in memory
I was having the same problem, out of the blue, running on a test device with Xcode 6.2, iPhone 6, iOS 8.3. To be clear, this was not experienced while running Xcode tests, but rather while running the actual app on my device. In the simulator it was fine, and running on the app itself it had been perfectly fine until recently.
I tried all of the suggestions I could find here, such as removing the provisioning profiles on my device (I removed ALL of them), temporarily enabling the Keychain Sharing capability in my project (even though we don't really need that), making sure my development account in Xcode was totally refreshed with all of the certificates and provisioning profiles, etc. Nothing helped.
Then I temporarily changed the accessibility level from kSecAttrAccessibleAfterFirstUnlock to kSecAttrAccessibleAlwaysThisDeviceOnly, ran the app, and it worked fine and was able to write to the Keychain. Then I changed it back to kSecAttrAccessibleAfterFirstUnlock, and the problem seems to have gone away "permanently."
Just got bitten by this bug on Xcode 8 Beta 3. Turning on Keychain Sharing seems to be the only solution.
I had the same issue. Fixed it by setting up Keychain Sharing.
(this is not a direct answer to the OP's question, but might help others)
Started getting the keychain error -34018 consistently in simulator after updating Xcode from version 7.3.1 to 8.0.
Following this tip from daidai's answer,
Some instances of the problem are caused by incorrect app signing. You can easily distinguish this case because the problem is 100% reproducible.
it was discovered that Provisioning Profile had somehow been set to None in the Signing sections of the target.
However, setting the Provisioning Profile fields to valid values was not sufficient to resolve the issue in this case.
Further investigation showed that the Push Notifications entitlement also displayed an error. It said the "Add the Push Notifications feature to your App ID." step was completed, but step "Add the Push Notifications entitlement to your entitlements file" was not.
After pressing "Fix Issue" to fix the Push Notification issue, the keychain error was resolved.
For this particular target, the "Keychain Sharing" entitlement had already been turned on at some previous time. Turning it off has not caused the keychain error to reappear so far, so its not clear whether it is necessary in this case.
In iOS 9 I turned off Address Sanitizer and it started working on the device.
The only solution that worked for me was first storing nil for the specified key, and then storing my new value with a separate operation. It would fail due to error -34018 if I attempted to overwrite the existing value. But as long as I stored nil first, then the updated value would be stored successfully immediately afterwards.
I met this -34018 issue today when running SecItemDelete API.
What I did to fix this is:
1. Following #k1th solution https://stackoverflow.com/a/33085955/889892
2. Run the SecItemDelete in main thread(Previously it's read from main thread, so just align this with deleting).
Sorry it comes back again :(
Turn on Keychain sharing in your project's capabilities, it should solve the problem.
What worked for me
Turn on Keychain Sharing.
Use the keychain as less as possible and cache the data in memory, UserPreferences, disk, etc.
Retry many times the keychain CRUD operations if these failed.
Use DispatchQueue.sync for storing/deleting/updating the data.
For me it was an app signing issue. I simply switched to the correct signing team in Xcode and the error no longer occurred