Android Studio 2.2.3: Gradle project sync failed. Basic functionality (e.g. editting, debugging) will not work properly

Your gradle version is: 1.8 which is not working anymore so you probably have to update it:

1- Go to -> check out the latest verion number.

2- In your project directory navigate to \gradle\wrapper\ directory and edit: file.



3- go to Tools→Android→Sync Project with Gradle files

4- If sync doesn’t do the job restart Android studio

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