Build Error in Android Studio 2.1.3

Question

I am using android studio 2.1.3. I am getting the following error, in spite of clearing the project and rebuilding it again, restarting etc... How to solve it?

Answer 1

Thanks.

I am using Windows 8.1 I tried deleting the folder .gradle in the application folder. Then I cleaned the project and build it again. IT WORKS FINE NOW.