Gradle sync failed: Gradle version 2.2 is required. Current version is 2.10.
If using the gradle wrapper, try editing the distributionUrl in xxxx/gradle/wrapper/gradle-wrapper.properties to gradle-2.2-all.zip
(1) 修改gradle-wrapper.properties
distributionUrl=https\://services.gradle.org/distributions/gradle-2.8-all.zip
(2)修改build.gradle
classpath ‘com.android.tools.build:gradle:1.5.0‘
Gradle sync failed: Gradle version 2.2 is required. Current version is 2.10.
原文：http://www.cnblogs.com/yshyee/p/5335642.html