Xamarin Android x86_64 build fails

[iXamDev]

Description

I try to build multiple APKs Xamarin.Android project with FAKE. The output should be a separate APKs for each ABI. Everything works except AndroidAbiTarget.X86And64 configuration.

Repro steps

1. Build Android for AndroidAbiTarget.X86And64

Expected behavior

APK builded

Actual behavior

Build fails with MSBuild error

MakeBundleNativeCodeExternal: /Library/Frameworks/Mono.framework/External/xbuild/Xamarin/Android/Xamarin.Android.Common.targets(2873,3): error : Sequence contains no matching element

Script reported an error: -> BuildFailedException: Target 'Build-MultiApks' failed. StackTrace: at Fake.Core.TargetModule.raiseIfError(OptionalTargetContext context) in D:\a\1\s\src\app\Fake.Core.Target\Target.fs:line 820 at Fake.Core.TargetModule.runOrDefault(String defaultTarget) in D:\a\1\s\src\app\Fake.Core.Target\Target.fs:line 968 at <StartupCode$build_temp_9768A34E6D40DD91047B0C51436770AA3E89B56876469E188395AE0F782EA83D>.$build_temp$fsx.main@() in /Users/ivan/Projects/Emp/build/FAKE/build_temp.fsx:line 468 -> One or more errors occurred. (Exception of type 'Fake.DotNet.MSBuildException' was thrown.) -> MSBuildException: Exception of type 'Fake.DotNet.MSBuildException' was thrown. StackTrace: at Fake.DotNet.MSBuild.handleAfterRun(String command, FSharpOption1 binLogPath, Int32 exitCode, String project) in D:\a\1\s\src\app\Fake.DotNet.MSBuild\MSBuild.fs:line 756
at Fake.DotNet.MSBuild.build(FSharpFunc2 setParams, String project) in D:\a\1\s\src\app\Fake.DotNet.MSBuild\MSBuild.fs:line 849 at Fake.DotNet.Xamarin.buildPackages@258(AndroidPackageParams param, FSharpOption1 abi, FSharpOption1 manifestFile) in D:\a\1\s\src\app\Fake.DotNet.Xamarin\Xamarin.fs:line 275 at Fake.DotNet.Xamarin.buildSpecificApk@298(AndroidPackageParams param, String manifestFile, String name, FSharpFunc2 transformVersion, AndroidAbiTarget target) in D:\a\1\s\src\app\Fake.DotNet.Xamarin\Xamarin.fs:line 307
at Fake.DotNet.Xamarin.createTargetPackage@319(AndroidPackageParams param, String manifestFile, AndroidAbiTarget target, FSharpFunc2 transformVersion) in D:\a\1\s\src\app\Fake.DotNet.Xamarin\Xamarin.fs:line 320 at Fake.DotNet.Xamarin.createPackageAbiSpecificApk@331-1.GenerateNext(IEnumerable1& next) in D:\a\1\s\src\app\Fake.DotNet.Xamarin\Xamarin.fs:line 332
at Microsoft.FSharp.Core.CompilerServices.GeneratedSequenceBase1.MoveNextImpl() at Microsoft.FSharp.Collections.SeqModule.ToList[T](IEnumerable1 source)
at build_temp.PackageMultiAbiAndroid(String projectPath, String config) in /Users/ivan/Projects/Emp/build/FAKE/build_temp.fsx:line 278
at [email protected](TargetParameter _arg5) in /Users/ivan/Projects/Emp/build/FAKE/build_temp.fsx:line 424
at Fake.Core.TargetModule.runSimpleInternal(TargetContext context, Target target) in D:\a\1\s\src\app\Fake.Core.Target\Target.fs:line 201
`

Known workarounds

I believe that problem in https:/fsharp/FAKE/blob/master/src/app/Fake.DotNet.Xamarin/Xamarin.fs#L311
Wrong configuration name: it should be x86_64, not X86_64

You may check it here

I checked it using MSBuild directly from command line
/Library/Frameworks/Mono.framework/Versions/Current/Commands/msbuild project.csproj /t:PackageForAndroid /p:RestorePackages=False /p:AndroidSupportedAbis=X86_64 /p:OutputPath=/Users/android/ /p:Configuration=Release - fails

and
/Library/Frameworks/Mono.framework/Versions/Current/Commands/msbuild project.csproj /t:PackageForAndroid /p:RestorePackages=False /p:AndroidSupportedAbis=x86_64 /p:OutputPath=/Users/android/ /p:Configuration=Release - work as expected

Related information

• MacOS 10.14.4
• Version of F# Make (5.12.6)
• Paket.Core: 5.198.0
• MSBuild Build Engine version 16.0.42-preview+g804bde742b for Mono

[matthid]

Thanks a lot for the report and the analysis