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Question

Today I got update for android studio 2.0 in stable version.

I update it and it restarted.

Then when It opens my existing project, it ask me to update my gra

Answer 1

aaptOptions {
        cruncherEnabled = false
}

Add the above line to your application module build.gradle

Clear the build cache Similar to the Android plugin's clean task that clears your project’s build/ directories, you can run the cleanBuildCache task to clear your project’s build cache. If a project specifies a non-default directory for its build cache, running the task from that project clears only that cache (and not the shared cache in the default location). To execute the task, select View > Tool Windows > Terminal from the menu bar and use one of the following commands:

On Windows:

gradlew cleanBuildCache

On Mac or Linux:

./gradlew cleanBuildCache