error XA0009: Error while loading assembly: /Users/Projects/monodroid-samples/FragmentsWalkthrough/SupportLibFragments/obj/Release/android/assets/supportlibfragmentssample.dll

[jpotts18]

I have been trying to build the Support Lib Fragments inside the FragmentWalkthrough on a Mac. I have done the following.

1. Added a new android-support-v4.jar file to the SupportLib folder.
2. Set the build action of the new JAR as Android Java Library.
3. Added the launcher images that were missing.
4. I got this error.

Warnings:

/Users/developer/Projects/monodroid-samples/FragmentsWalkthrough/SupportLibFragments/SupportLibFragments.csproj (Build) ->
/Library/Frameworks/Mono.framework/External/xbuild/Xamarin/Android/Xamarin.Android.Common.targets (_ResolveSatellitePaths target) ->

/Library/Frameworks/Mono.framework/External/xbuild/Xamarin/Android/Xamarin.Android.Common.targets:  warning : Reference 'Mono.Android, Version=0.0.0.0, Culture=neutral, PublicKeyToken=84e04ff9cfb79065' not resolved
/Library/Frameworks/Mono.framework/External/xbuild/Xamarin/Android/Xamarin.Android.Common.targets:  warning : Reference 'Mono.Android.Support.v4, Version=0.0.0.0, Culture=neutral, PublicKeyToken=84e04ff9cfb79065' not resolved
/Library/Frameworks/Mono.framework/External/xbuild/Xamarin/Android/Xamarin.Android.Common.targets:  warning : Reference 'mscorlib, Version=2.0.5.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e' not resolved

Errors:

/Users/developer/Projects/monodroid-samples/FragmentsWalkthrough/SupportLibFragments/SupportLibFragments.csproj (Build) ->
/Library/Frameworks/Mono.framework/External/xbuild/Xamarin/Android/Xamarin.Android.Common.targets (_GenerateJavaStubs target) ->

: error XA0009: Error while loading assembly: /Users/developer/Projects/monodroid-samples/FragmentsWalkthrough/SupportLibFragments/obj/Release/android/assets/supportlibfragmentssample.dll

 3 Warning(s)
 1 Error(s)

I tried the same thing on windows and I was able to build to a phone. I have also had some problem with my phones ABI, so I went into the Project Settings and I added the (armeabi-v7a).

Deploying in Debug mode works on mac with the same configuration.
Differences between release and debug build

Linker was set to

• link sdk's only in release mode
• dont link in Debug mode.

General

• Enable optimzations was selected for release mode

[jpotts18]

Resolved by the following project options

• Android Build -> Linker (tab) -> Link behavior as Link all assemblies
• Android Build -> Packaging (tab) -> Use Shared Run time
• On the file system remove your bin and obj folders on the file system.

[topgenorth]

ALso, you don't need to add android-support-v4.jar in the current versions of Xamarin.Android.

[DrTJ2066]

Thank you @jpotts18
Your solution worked for me!