Gradle:Gradle版本build.gradle 中的gradle版本与gradle-wrapper.properties不匹配

警告报错如下：

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Warning:Gradle version 2.8 is required.
Current version is 2.4. If using the gradle wrapper, try editing the distributionUrl in E:\project\2016GitHub\welcome\UberSplash\gradle\wrapper\gradle-wrapper.properties to gradle-2.8-all.zip

Error:(1, 1) A problem occurred evaluating project ‘:app’.

Failed to apply plugin [id ‘com.android.application’]
Gradle version 2.8 is required. Current version is 2.4. If using the gradle wrapper, try editing the distributionUrl in E:\project\2016GitHub\welcome\UberSplash\gradle\wrapper\gradle-wrapper.properties to gradle-2.8-all.zip

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解决方法：

修改build.gradle(Project )中gradle的版本，根据实际情况把版本改低或改高。

dependencies {     classpath 'com.android.tools.build:gradle:2.0.0-alpha3'    }

改为

dependencies {     classpath 'com.android.tools.build:gradle:1.5.+'    }