but I have an iPhone 13 plugged into my MacBook Pro. I know this might seem like a strange question, but when I try to build & run my app the following messages notify me
This iPhone 4 is running iOS 15.6.1 (19G82), which may
not be supported by this version of Xcode. An updated
version of Xcode may be found on the App Store or at
developer.apple.com.
I cannot remember when the following notification came to my attention, but it basically displays the same message and I took a screenshot of it when it occurred
I have contacted Apple, but I am on my second tech, who is asking me about my browser version, etc... which tells me that they are stalling - no browser, an app build & run in Xcode. An app literally targeting iOS 11.0 and above
I'm using Xcode 13.4.1 (13F100) on macOS Monterey 12.5 (21G72).
One of my real test devices (iPhone) has installed iOS 16.0 (20A5328h).
I'd like to run an app from Xcode on this iPhone. Since the iPhone uses a beta version I'm not able to use this device since it's an Unavailable Device with unsupported OS version as you can see here:
This isn't the first time I have to deal with a problem like this. Till now, I always downloaded the beta Xcode version, extracted the folder from DeviceSupport and added it to my actual Xcode version. Then it worked.
I did the same this time. I downloaded the newest Xcode beta version, which also supports iOS 16. I added the folder 16.0 to /Volumes/Macintosh/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport/.
The Unavailable Device message disappeared and I was able to build the app on the iPhone. I even got the Build Succeeded sign:
But then, a few seconds later, I get:
Failed to prepare device for development.
This operation can fail if the version of the OS on the device is incompatible with the installed version of Xcode. You may also need to restart your mac and device in order to correctly detect compatibility.
I already restarted both, iPhone and Mac but without success.
Why doesn't it work this time? Is there any workaround?
I had the same problem. When you enable Developer Mode on the test device (Settings --> Privacy & Security --> Developer Mode), it works.
#David did you try my solution?
I didn't find a workaround, so I simply downloaded the Xcode beta version, opened it, build the app to the iPhone and then deleted the beta version, since I only needed it for this one build.
I am getting the XCode error that typically means that the XCode version is too old to connect to a given Ios version but this is the latest released XCode version 13.4.
Failed to prepare device for development.
Restarting does not help and if anything, further updates to iOS will probably make it worse. Are there other fixes? (Other than restarting the phone)
RElated: Restarting phone:
Xcode error: Failed to prepare device for development
Yes, it's compatible:
on my MacBook Xcode 13.4 can build apps for my iPhone SE 2 which is on iOS 15.5,
on xcodereleases.com we can read that in Xcode 13.4 the iOS 15.5 SDK is available.
Earlier I noticed that with one of my cables the above mentioned error message popped up all the time. Once I change the cable the problem disappeared. But this is not a solution for everyone of course; I just say that this problem can have multiple reasons, which I think cannot be guessed based on your description.
I have updated to Xcode 12.3 beta. device version is 14.2, but Xcode complaining:
Errors were encountered while preparing your device for development. Please check the Devices and Simulators Window.
Failed to prepare device for development
iPhone directly connected to MacBook.
I have tried all mumbo jumbos on the web. but no success any idea?
Unable to prepare DEVICE for development
Please check the connection to the device, and review all errors in the Devices and Simulators window.
A simple phone restart will fix it
I have had to come back to this SO question twice in the past couple weeks. First time, I did have to update my Xcode and iOS versions, which fixed the issue. Now, the issue has returned, but there are no updates. I tried disconnecting and reconnecting my phone from my laptop, but to no avail.
What fixed it the second time was merely restarting my phone. I am curious if that would have fixed it the first time too, without needing to have updated.
I know this is just echoing the other answers here, but at the very least, I would recommend just starting with a simple phone restart and seeing if that fixes your problem. Here is the specific screenshot that I encountered, in case yours is the same (pro tip: you can open up the "Devices and Simulators" window by going to Window -> Devices and Simulators shift-command-2).
This error shows because of iPhone OS version is not supported by Xcode that's why this warning popped up, so check which max ios version is supported by Xcode which you are using.
In my case, the Xcode version is 13.1 and my iOS version is 15.4 so what I did, First downloaded device support version 15.4 from here (Download according to your device version) and added this to my Xcode.
steps to add the file in Xcode:-
Go to Applications > Right click on Xcode and Select Show Package Contents > Contents > Developer > Platforms > iPhoneOS.platform > DeviceSupport.
Extract your device support file to DeviceSupport Folder.
Restart Xcode and unplug and plug in your device.
Exact same problem here, this solved the issue for me:
Delete the app from the phone
Clean the Build Folder with: ⌘ + shift + K
Delete derived data
Unpair device (from ⌘ + shift + 2 window)
Disconnect iPhone
Restart iPhone
Restart Mac
Trust
After this, it worked for me.
I restarted my iPhone(14.2); now both Xcode 12.3 beta and 12.2 can run app on my device.
I could not get the phone to authorize until I had the paired Apple Watch trust the computer as well.
A more helpful error message could be imagined.
Both the iPhone and the paired Apple Watch must trust the computer before the phone can be successfully prepared for development.
If u are looking this because, your ios 15.7 device (latest for iPdas at the moment) show this error on xcode 14.0 (latest at the moment) it is a bug related with the xcode version.
Check Here.
Update
This issue is fixed in Xcode 14.0.1
In my case was to keep the iOS version with my Xcode version in sync.
Xcode 12.3 with iOS 14.3
What worked for me was to go to Xcode Devices and Simulators window, then ...
right click on the Connected device, and select "Show Provisioning Profiles" menu item, then delete all the provisioning profiles,
right click on the Connected device, and select "Unpair Device" menu item
Unplug and reboot the phone
I tried most suggestions here. The only thing that ended up working was unpairing my phone in Xcode then unpairing my apple watch from my iPhone. Connects just fine now. iOS (14.3) Xcode (12.3)
Thanks Matt for hint:
Updating device iOS to 12.3 beta fixed the problem.
if you updated you iOS to latest beta version, you should also use latest Xcode beta version.
Exact the same problem with Xcode 12.3 beta ; for me, just have to:
Disconnect the phone
Restart the phone still on ios14.2
-> data cable off
-> data cable on
and it works :)
Solution: Update your Xcode to a newer release date than your iOS Release Date.
I experienced this problem when using the iPhone's personal hotspot on my Mac. The fix was to disconnect the phone from the computer, then disconnect from the personal hotspot and reconnect again. Apparently this makes the mac use the wifi hotspot (and not the usb hotspot on the iPhone, which messes things up when debugging).
As many people mentioned/suggested, restarting my iPhone solved the problem.
My setups are: Catalina 10.15.7, Android Studio 4.0, Flutter 2.01,and Xcode 12.4.
I think having an apple watch paired to your iphone causes some issues.
I had trusted from my apple watch, but was still having this issue. Unparing my apple watch from my iphone was the only thing that worked for me:
unpair apple watch from iphone
unpair iphone from xcode
Restart both, and don't pair apple watch until the iphone is paired.
and, if you have any other problems, and are using flutter, run flutter doctor, and ensure you have cocoapods installed.
and once again, if Flutter issues, follow the details here to ensure you have your signing setup correctly
also, if things aren't working, then do a flutter clean, and then try again.
Updating Xcode is a fix because old versions of Xcode can't talk to new versions of iOS (see https://developer.apple.com/support/xcode/ for compatibility).
If you're stuck on an old version of Xcode you can use something like https://github.com/iGhibli/iOS-DeviceSupport or https://github.com/filsv/iPhoneOSDeviceSupport which installs the newer device support files into older versions of Xcode.
I just solved my issue removing the iPhone cable and putting it back.
This solved the issue for me:
Delete the app from the phone
Clean the Build Folder with: ⌘ + shift + K
Unpair device ⌘ + shift + 2
Disconnect iPhone
cmd + shift + 2
Click the red cross to check error detail
In most cases, the error message shows your xcode supported iOS version is lower than your iPhone's iOS version.
Update your xcode.
In my case, after updating iPhone to a newer iOS version then got this issue.
The solution is needed to update XCode to the latest version and everything is ok.
If other answers don't work, try updating Xcode.
For me I was using Xcode 14.0.0. The release notes for 14.0.1 say
This update fixes an issue that prevents development with devices running iOS 15.7.
Indeed my phone is on iOS 15.7.
Nothing from the above listed helped me and also I have encountered this problem when the app was removed for a while. But turning off the phone for 10 mins solved the problem.
My Current Setting and Versions:
XCode 12.4 and iOS 14.4
I had to update XCode since my iOS was updated. This fixed the compiler error in Unity and then the same message popped up during deployment. All I did was disconnect/re-connect.
Restarting the iPad works for me every time!
We encountered this error and determined it was due to a damaged iPhone cable. New cable, problem solved.
I just had to unpair the phone from Xcode's Devices and Simulators screen and then tap Trust when connecting it to the computer to make my Watch work with Xcode
I had to change the iOs Deployment target to "iOs 15". Then it worked. After that, I just set it back to iOS 12, and everything keeps working.
If nothing worked for you, try the below steps.
Update the Xcode
Update the iOS version
Connect mac and iPhone to the same wifi
just Clean the Build Folder with: ⌘ + shift + K
I have been trying unsuccessfully to profile my device (via Instruments) using the latest version of Xcode 7.0.1 (7A1001 released 9/28), as well as the previous version of Xcode 7 (7A218), as well as Xcode 7.1 Beta 2 (7B75).
My device is an iPhone 6+ with iOS 9.0.1 installed - the latest GM release of iOS9. I am able to run / debug applications on this device without issues.
In the screenshots below you can see that my device is disabled (greyed out) in all screenshots in all versions. I am able to profile other devices running iOS 8.4.1 without any issues.
Does the current version of Xcode not support profiling against iOS 9.0.1 or is there some kind of configuration setting or known work around for this?
Xcode 7.0.1:
Xcode 7.0:
Xcode 7.1 beta 2:
TL;DR - Perform a complete reboot of your device; restart Xcode & instruments; select "Open Xcode" if prompted to enable the device for development.
Update 3/31/2016: I haven't encountered any issues with the latest version(s) of Xcode (7.2.x, 7.3), so it seems that the stability here has been improved.
I believe I may have finally gotten this to work properly. Detailed steps:
Unplug the device from your Mac & power down the device completely (hold the power button for several seconds; slide to power off).
Close Xcode and Instruments.
Restart the device & once it has booted completely re-connect it to your Mac.
Re-launch Xcode. Here, my device showed as disabled and Xcode indicated that the device was not available for use.
Open your project; clean (Shift+Command+K), Build (Command+B), Profile (Command+I).
After Instruments launched I noticed that the device was enabled. Upon selecting it, a message was displayed with the title "Enable this device for development?" and message "This will open Xcode and enable this device for development." (Note that this only happened to me the first time I went through this process even though I had already been using the device for development - whereas some users have also reported that they are not presented with this dialogue.)
Click "Open Xcode". Here Xcode did not prompt me for anything nor was anything displayed - no additional messages indicating anything had been done or that the device was or was not available for development. Opening the Devices window, the device appeared to be available. (I have not been presented with this option for subsequent occurrences.)
Now I was able to select the device in Instruments and profile it.
As a side note, I was also again able to delete installed apps from the Devices window (I realized that this was not possible to do previously).
I'm unsure how my device ended up in this state however I will be on the lookout to see if this continues to occur.
Please note that this was done using Xcode 7.0.1.
Update: My device seems to lapse back into not being able to be used for profiling some time after performing these steps - I've had to reboot my device again in order for it to be available for profiling. Not sure what is triggering this behavior but I will file a Radar for this.
Close instruments -> reset your device by long pressing home and power button -> restart instruments. Works for Xcode 7.3.
According to Apple staff on the developer forums the behaviour of this issue is greatly improved in the Xcode 7.3 betas, so one easy solution is to try upgrading Xcode. I've upgraded and it seems to be behaving so far.
This issue still occurred with XCode 10.3 and iOS 12.4.2
I restarted the device only, and it worked.