Android : UnsupportedMethodException Android Studio 0.8.9

I have Android Studio 0.8.9. Until now, It could sync with gradle files successfully, But today when I opened it, It gives me this error:

UnsupportedMethodException
         Failed to set up Android modules in project 'Project': Unsupported method: SourceProvider.getJniDirectories().
         The version of Gradle you connect to does not support that method.
         To resolve the problem you can change/upgrade the target version of Gradle you connect to.
         Alternatively, you can ignore this exception and read other information from the model.

Can you help me solve this? Thanks.