Gradle version 1.8 is required. Current version is 1.6

Question

There is a new Android Studio update: https://sites.google.com/a/android.com/tools/recent/androidstudio030released

The link says:

The improved per

Answer 1

I took several steps including: downloaded the gradle-1.8-all.zip file and placed it in a new directory off of my user home directory (Windows-7) and named the directory "gradle-1.8". For good measure, I also unzipped the download in this new directory. I also added a user environmental variable "GRADLE_HOME" with a pathway to this new directory.

I manually edited the "build.gradle" file in the project's top-level directory and entered:

dependencies {
    classpath 'com.android.tools.build:gradle:0.6.3'
}

When Android Studio opened the existing project and I did a build or tried to run it, I got the subject error. The final solution, as mentioned by others, was a several step process:

1. I removed both the "gradle" and the ".gradle" directories.
2. I rebuilt the project which recreated the ".gradle" directory but not the "gradle" directory. Then, I closed the project and used "File/Import Project" to load the project again. And, I used the "Use customizable gradle wrapper" as suggested.

This worked. The "gradle" directory was created again in the project's top-level directory. The project builds clean and runs. It would be nice to have step-by-step upgrade instructions for these updates.