Error:Execution failed for task ':app:packageDebug' for gradle version 3.5.2

Question

Expected file collection to contain exactly one file, however, it contains more than one file.

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Deprecated Gradle features were used in this build, making it incompatible with Gradle 7.0. Use '--warning-mode all' to show the individual deprecation warnings.

Answer 1

1)Clean and Rebuild project should work. It works for me

2)Try: invalidate caches/Restart