“AndroidManifest.xml doesn't exist or has incorrect root tag” Error

Question

I am new to AndroidStudio AND Gradle.

I imported a project from eclipse, created a module, and tried to run the project, but I got this error:

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Answer 1

For me clicking on Sync project with Gradle files button did not solve the problem alone.

After Syncing project with Gradle files, I explicitly had to invalidate the cache and restart studio. Only after this action, the red cross-mark over configuration disappeared and everything started working.