I installed Android Studio 0.5.1 and my project is not working any more. Error it provides is:
The project is using an unsupported version of Gradle. Pleas
I started getting this error because I synced to a previous commit, which had a subproject with
classpath 'com.android.tools.build:gradle:0.7.+'
in its build.gradle. Changing this to 0.9.+ fixed the error.