Gradle sync failed: Unable to find method

I fixed the error by changing the following things.

1. Open the file under your-app-project\your-app-name\gradle\wrapper\gradle-wrapper.properties

2. replace the old URL path by this one:
   distributionUrl=https\://services.gradle.org/distributions/gradle-2.10-all.zip

3. Rename the folder name from "...\1.12" to your-app-project\your-app-name\.gradle\2.10

4. Change the classpath of your-app-project\your-app-name\build.gradle to
   classpath 'com.android.tools.build:gradle:2.1.2'

5. Replace runProguard of your-app-project\your-app-name\app\build.gradle by minifyEnabled

6. Click Retry on the error reminder or Reopen your Android Studio and project.

I am using the latest versions of Android Studio and Gradle.