My Xamarin.Android app can no longer be deployed to an emulator/device. I can compile it successfully and the deployment process is started but in the end it fails. I'm using Visual Studio for Mac and Xamarin.Android:
[INSTALL_FAILED_INVALID_APK: Package couldn't be installed in /data/app/my.app.bundle.id-agudyKm4Ib_8OheG3_5zmg==: Package /data/app/my.app.bundle.id-agudyKm4Ib_8OheG3_5zmg==/base.apk code is missing]
My build configuration is below:
This error occurs if I set DEX compiler to D8:
R8 : warning : Missing class: androidx.appcompat.widget.AppCompatEditText (and 10 more similar errors)
missing R8 : error : Compilation can't be completed because some library classes are missing.
The error occurs with all the settings above, this is basically the only configuration I can build my app but unable to deploy it to device:
/Library/Frameworks/Mono.framework/External/xbuild/Xamarin/Android/Xamarin.Android.Common.Debugging.targets(612,2): error ADB0010: Deployment failed
/Library/Frameworks/Mono.framework/External/xbuild/Xamarin/Android/Xamarin.Android.Common.Debugging.targets(612,2): error ADB0010: Mono.AndroidTools.InstallFailedException: Failure [INSTALL_FAILED_INVALID_APK: Package couldn't be installed in /data/app/my.app.bundle.id-agudyKm4Ib_8OheG3_5zmg==: Package /data/app/my.app.bundle.id-agudyKm4Ib_8OheG3_5zmg==/base.apk code is missing]
/Library/Frameworks/Mono.framework/External/xbuild/Xamarin/Android/Xamarin.Android.Common.Debugging.targets(612,2): error ADB0010: at Mono.AndroidTools.Internal.AdbOutputParsing.CheckInstallSuccess (System.String output, System.String packageName) [0x00152] in /Users/runner/runners/2.165.0/work/1/s/xamarin-android/external/monodroid/tools/msbuild/external/androidtools/Mono.AndroidTools/Internal/AdbOutputParsing.cs:341
/Library/Frameworks/Mono.framework/External/xbuild/Xamarin/Android/Xamarin.Android.Common.Debugging.targets(612,2): error ADB0010: at Mono.AndroidTools.AndroidDevice+<>c__DisplayClass95_0.<InstallPackage>b__0 (System.Threading.Tasks.Task`1[TResult] t) [0x00016] in /Users/runner/runners/2.165.0/work/1/s/xamarin-android/external/monodroid/tools/msbuild/external/androidtools/Mono.AndroidTools/AndroidDevice.cs:753
/Library/Frameworks/Mono.framework/External/xbuild/Xamarin/Android/Xamarin.Android.Common.Debugging.targets(612,2): error ADB0010: at System.Threading.Tasks.ContinuationTaskFromResultTask`1[TAntecedentResult].InnerInvoke () [0x00024] in <f9d1b832704f410aa8ec771f4fe80552>:0
/Library/Frameworks/Mono.framework/External/xbuild/Xamarin/Android/Xamarin.Android.Common.Debugging.targets(612,2): error ADB0010: at System.Threading.Tasks.Task.Execute () [0x00000] in /Users/builder/jenkins/workspace/build-package-osx-mono/2019-10/external/bockbuild/builds/mono-x64/external/corert/src/System.Private.CoreLib/src/System/Threading/Tasks/Task.cs:2319
/Library/Frameworks/Mono.framework/External/xbuild/Xamarin/Android/Xamarin.Android.Common.Debugging.targets(612,2): error ADB0010: --- End of stack trace from previous location where exception was thrown ---
/Library/Frameworks/Mono.framework/External/xbuild/Xamarin/Android/Xamarin.Android.Common.Debugging.targets(612,2): error ADB0010:
/Library/Frameworks/Mono.framework/External/xbuild/Xamarin/Android/Xamarin.Android.Common.Debugging.targets(612,2): error ADB0010: at AndroidDeviceExtensions.PushAndInstallPackage (Mono.AndroidTools.AndroidDevice device, System.String apkFile, System.String packageName, System.Boolean reinstall, Mono.AndroidTools.Adb.AdbProgressReporter notifyProgress, System.Threading.CancellationToken token) [0x00189] in /Users/runner/runners/2.165.0/work/1/s/xamarin-android/external/monodroid/tools/msbuild/external/androidtools/Xamarin.AndroidTools/Devices/AndroidDeviceExtensions.cs:187
/Library/Frameworks/Mono.framework/External/xbuild/Xamarin/Android/Xamarin.Android.Common.Debugging.targets(612,2): error ADB0010: at AndroidDeviceExtensions.PushAndInstallPackage (Mono.AndroidTools.AndroidDevice device, System.String apkFile, System.String packageName, System.Boolean reinstall, Mono.AndroidTools.Adb.AdbProgressReporter notifyProgress, System.Threading.CancellationToken token) [0x003df] in /Users/runner/runners/2.165.0/work/1/s/xamarin-android/external/monodroid/tools/msbuild/external/androidtools/Xamarin.AndroidTools/Devices/AndroidDeviceExtensions.cs:203
/Library/Frameworks/Mono.framework/External/xbuild/Xamarin/Android/Xamarin.Android.Common.Debugging.targets(612,2): error ADB0010: at Xamarin.AndroidTools.AndroidDeploySession.InstallPackage () [0x003be] in /Users/runner/runners/2.165.0/work/1/s/xamarin-android/external/monodroid/tools/msbuild/external/androidtools/Xamarin.AndroidTools/Sessions/AndroidDeploySession.cs:433
/Library/Frameworks/Mono.framework/External/xbuild/Xamarin/Android/Xamarin.Android.Common.Debugging.targets(612,2): error ADB0010: at Xamarin.AndroidTools.AndroidDeploySession.RunAsync (System.Threading.CancellationToken token) [0x003ae] in /Users/runner/runners/2.165.0/work/1/s/xamarin-android/external/monodroid/tools/msbuild/external/androidtools/Xamarin.AndroidTools/Sessions/AndroidDeploySession.cs:217
/Library/Frameworks/Mono.framework/External/xbuild/Xamarin/Android/Xamarin.Android.Common.Debugging.targets(612,2): error ADB0010: at Xamarin.AndroidTools.AndroidDeploySession.RunLoggedAsync (System.Threading.CancellationToken token) [0x0002f] in /Users/runner/runners/2.165.0/work/1/s/xamarin-android/external/monodroid/tools/msbuild/external/androidtools/Xamarin.AndroidTools/Sessions/AndroidDeploySession.cs:119
Not a Xamarin expert but if you can see the native files, can you check gradle.properties if it has:
android.useAndroidX=true
android.enableJetifier=true
Also inside the build.gradle of the native files (app directory) you should have:
implementation "androidx.appcompat:appcompat:1.1.0"