Xamarin build action warning XA0101

It's a warning that came with the new Xamarin Update.If you want to get rid of it, change the Build Action for AndroidManifest.xml to "none".

" New projects created from templates show ignorable build warning: "@(Content) build action is not supported ... AndroidManifest.xml". Workaround: change the build action of "AndroidManifest.xml" to "none". Now fixed in the Alpha and Beta channels. "

-- by Stable release: XamarinVS 3.11.445, new features and bug fixes (Brendan Zagaeski)

Refer : Bug 28210 - Bugzilla

My case was similar but for a slightly different reason. I was using msbuild /t:pack to package my Android package into a NuGet package (NUPKG) and wanted to include some static content in the generated NUPKG.

I had this, which worked in most projects, but not the Android ones:

  <ItemGroup>    <Content Include="..\THIRD-PARTY-NOTICES.txt" Link="THIRD-PARTY-NOTICES.txt">      <Pack>true</Pack>      <PackagePath></PackagePath>    </Content>  </ItemGroup>

But based on other answers in this question, I updated <Content ...> to <None ...>:

  <ItemGroup>    <None Include="..\THIRD-PARTY-NOTICES.txt" Link="THIRD-PARTY-NOTICES.txt">      <Pack>true</Pack>      <PackagePath></PackagePath>    </None>  </ItemGroup>

And this still works just fine in all my projects (class lib, Android, iOS, others). The txt file got correctly picked up and embedded in the generated NUPKG.