Launch failed. The app could not be launched on xamarin - ios

I am getting the following error when trying to run Visual Studio/Xamarin built application on the IOS Simulator.
Launch failed. The app 'App2' could not be launched on 'iPhone 7 Plus iOS 10.1'. Please check the logs for more details.
"App2" was created using the Tab Template, and NO code changes after rolling the application.
Windows environment: Windows 10 w/Visual Studio 2015 update 2
Mac environment: IMac Sierra fully patched. XCode 8.1 (what ever is most up to date).
I have connected the mac remote and pc. I can launch the iPhone simulator on the mac from Visual studio on the PC.
I get the error when trying to run "App2". It compiles fine, just won't run on the simulator.
I've searched here, and similar results speak of VS Crashing. Mine doesn't crash, just presents the error. NOTE: There's nothing in any log I can find with details by the way.
Ideas? Thanks!
EDIT: Just loaded up Parallels on the IMac and ran Win 10/VStudio. I get the same error. Again, xamarin remote agent connected and I can start the simulator from the PC, i just can't deploy to it.

After all the research and help from those here it comes down to a bug with the current version of Xamarin. Options are to wait until a new stable build is on the Xamarin site or get builds off of GIT. I'm choosing to wait, as I've not had great luck working with interim builds.
Xamarin that downloads with the new VS 2017 fixes this bug.

Related

visual studio 2022 installs monoframework 6.12.0.174 on mac, then iOS Simulator fails

I use Visual Studio 2022 on Windows for Xamarin development for Android & iOS. I use a Mac Mini with M1 for the iOS builds. All has been working fine for over a month. A few days ago I allowed the MAC to perform an update. Today when I tried to build for iOS, the Pair To Mac dialog said there was a monoframework mismatch and offered to install monoframework 6.12.0.174 on the MAC. Initially I chose Cancel,and then rebooted both machines. The same error occurred when I tried again. This time I allowed the install. After the install completed, every time I try to use the iOS Simulator it hangs as soon as it appears. I would appreciate some direction. I do not know how to fix it and I do not know how to back-out the mono install on the MAC. Please help.
Solution: I updated Visual Studio & Visual Studio for Mac to the current versions. Then found in the following in the Visual Studio ReleaseNotes:
Known Issues
Deploying an iOS app with Visual Studio 2022 and Apple Xcode 13.3 results in a Remote iOS simulator window with a blank/black screen. Workaround: Disable the “Remote Simulator to Windows” check box in the iOS Settings under the Tools - Options menu. The iOS app should deploy correctly on the macOS host.
Following those instructions I disabled the “Remote Simulator to Windows” check box in the iOS Settings under the Tools - Options menu. The iOS app then deployed correctly, but on the macOS host, no longer can it deploy on the Windows machine from the Mac build host as in prior versions.

Visual Studio - Xamarin forms application not deploying onto iOS through "Pair to Mac"

I have a Xamarin.Forms application that has suddenly stopped deploying onto the iOS simulator when I use the "Pair to Mac" option on VS 2019. VS pairs to the mac with absolutely no problems, and it gives me the option to pick my simulator here:
However, when I click to deploy the app, the build and deploy stops almost immediately, and this is shown in the output.
It doesn't even look like it's trying to deploy it! I don't know why this has happened as it used to work with no issues until recently.
(Edit) I have the latest version of Visual Studio Community 2019 (16.8.4) and Xcode (12.3).

Xamarin.Ios does not deploy to iphone-simulator

I have a notebook with windows installed and a virtual machine of MacOs Catalina.
Connecting the Mac to Visual Studio on windows works without a problem but when I want to run the Xamarin.Ios Project the simulator boots and after some seconds the error
"could not launch the app (bundle_name) on the device iOS 13.3 - iPhone 11: The request to open (bundle_name) failed.
occures.
Here is the error
The latest version of XCode (11.3.1) and Visualstudio 2019 are both installed on the virtual machine.
Sometimes another error occures on the virtual machine which says that springboard quit unexpected. Don't know if it has something to do with this problem
Here is the error for the springboard error
Does anyone know how to solve this? I looked it up online but I can't find a working solution.
I had same problem. I changed my provisioning profile from distribution to development and it fixed .

visual studio 2017 cordova ios debug in local device failed

This is link of the same problem I raised in Visual Studio Developer support portal.
https://developercommunity.visualstudio.com/content/problem/61875/visual-studio-2017-cordova-ios-debug-on-local-devi.html
I am trying to debug cordova app in iPhone 5s local device connected to my laptop.
visual studio 2017 cordova 7.0.1 xcode 8.3.1 ios 10.2.1
After build it is failing at deployment.
build successful but failing to deploy to IOS device.
it is bringing up itunes and then shows the app there and device is identified but says error occured continue or not? and fails.
Earlier I deployed and several times debugged directly with local device.
one error result states, version mismatch other says device may not be connected and awake.
I am using ipod 9.3 version ios and another one iphone 5s with 10.2.1 ios.
I am building apache cordova app in visual studio 2017 with macincloud remotebuild.
how to resolve this!? any hint is a big help!!
I am manually deploying but can't debug. now,
i am getting network error at xmlhttprequest in device and but same code working fine in simulator.
when press device button then and i restart app then it is dumping a big error message and showing exitapp though i am not using any of that plugin or code line.
how to debug on device is first priority which may help to resolve rest.
1>Time Elapsed 00:05:02.04 2>------ Deploy started: Project: BlankCordovaApp2, Configuration: Debug iOS ------ 2>Found iTunes version: 12.3.2.35 2>Uninstalling app ID: COM.appanem.appanem. 2>Successfully installed .ipa file: C:\Users\Ekambarrao\documents\visual studio 2017\Projects\BlankCordovaApp2\BlankCordovaApp2\bin\iOS\Debug\appanem.ipa. 2>Starting idevicedebugserverproxy.exe at port 3000. 2>Cannot find the app installed on the device. Check that the device is connected, awake, and unlocked. 2>Starting ios_webkit_debug_proxy.exe at port 9221. 2>Deployment failed.
Is everybody happily working with this latest releases of Cordova IOS xcode vs 2017 or everybody facing the same problem as I am?
Issue is resolved, I am able to debug after I built my own VM of IOS and then debug but not sure what really resolved this.
What I can make out is,
unlike earlier, (not sure correct or wrong because this I could not do when I was using macincloud),
now the provisional profile need to be tagged to even device for debugging which was earlier sufficient to just list the device uuid in store certificates and profiles section.

Visual Studio 2015 hangs on deploying cordova application

I'm trying to build a blank cordova application into my iPad Air 2 with Visual Studio 2015 Enterprise edition as i've already done it with success with the release candidate version.
I've got node.js v 4.2.2 on both machines since version 5.2.0 was hanging the build indefinitely, i've also got latest version of iTunes (12.3.1) as well as iOS 9.2 on the mobile device.
I've got the remote MAC set up and everything works fine for the building part, infact i've checked and the .ipa file is there at the end of the build into the folder ...\Documents\Visual Studio 2015\Projects\BlankCordovaApp1\BlankCordovaApp1\bin\iOS\Debug and if i launch that it will correctly install into iTunes and the iPad itself.
The problem is that the build action with Configuration "iOS" and "Local Device" with the iPad connected to the windows 7 PC will hang indefinitely after copying back said .ipa file after writing this line into the Build Output:
2>------ Deploy started: Project: BlankCordovaApp1, Configuration: Debug iOS ------
No matter how much time i wait it wont start the debug session even if i authorized the pc onto the iPad and have my web Inspector turned on onto the safari options. At this point i have to interrupt the build to be able to work again.
What really gets me is that if i connect the iPad to the MAC machine and build with "Remote Device" option the build works fine and i can debug remotely from my windows pc, unfortunately working like that isn't an option since the Apple machine isn't in the same room of my developing machine.
Any insight about this issue would be really appreciate, thanks in advance.
You are using a recent version of node and thus will also need to use a recent version of Cordova.
Specifically, you need to use Cordova 5.3.3 to be able to use Node.js 4.x.x+. The hang you are experiencing is exactly why. It's an incompatibility with a down stream node module and Node 4.x.x. You can downgrade to Node 0.12.x or upgrade your Cordova project to 5.3.3.
http://cordova.apache.org/news/2015/09/22/tools-release.html
Note that Node 5.x.x is only supported in Cordova 5.4.1.
This should be addressed in the latest VS Tools for Cordova Update 6. Deploying to local device is now available.
Take a look at http://microsoft.github.io/vstacoblog/2016/02/04/announcing-update-6.html.

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