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.NET for Android error XA4253

Example messages

error XA4253: Generated Java callable wrapper code changed: 'obj/Release/android/src/mono/MonoRuntimeProvider.java'

Issue

The generated Java callable wrapper (JCW) source file was unexpectedly modified during the build. This usually indicates that an incremental build detected a change in the generated output that should not have occurred.

Solution

Perform a clean build of your project (dotnet clean followed by dotnet build) to ensure all generated files are up to date. If the error persists, please file a bug report with a reproduction project.