.NET for Android error/warning XA1026
warning XA1026: Using AAPT is deprecated in favor of AAPT2. Please enable 'Use incremental Android packaging system (aapt2)' in the Visual Studio project property pages or edit the project file in a text editor and set the 'AndroidUseAapt2' MSBuild property to 'true'.
error XA1026: Using AAPT is not supported in .NET for Android projects that target .NET 6 or higher. Please enable 'Use incremental Android packaging system (aapt2)' in the Visual Studio project property pages or edit the project file in a text editor and set the 'AndroidUseAapt2' MSBuild property to 'true'.
Google has deprecated the AAPT command-line tool in favor of
AAPT2 going forward. .NET for Android has accordingly now deprecated
<AndroidUseAapt2>false</AndroidUseAapt2>
as well.
Update the AndroidUseAapt2
MSBuild property to true
to select
AAPT2. This property corresponds to the Use incremental Android
packaging system (aapt2) setting in the Visual Studio project
properties pages. Alternatively, remove <AndroidUseAapt2>
from the
.csproj file to let the build select the default value true
.
Important
AAPT2 will in some cases enforce stricter rules on resource files than the previous AAPT, so some adjustments might be needed if you see new error messages that come from AAPT2 itself rather than from the .NET for Android build tasks.
If needed, the --legacy
switch can run AAPT2 in an AAPT
compatibility mode. Add the following to your .csproj file:
<PropertyGroup>
<AndroidAapt2CompileExtraArgs>--legacy</AndroidAapt2CompileExtraArgs>
</PropertyGroup>