Plugin is too old, please update to a more recent version, or set ANDROID_DAILY_OVERRID

今天从Eclipse切换Android Studio工程时，报了个奇葩错误：

Error:(1,0) Plugin is too old, please updatetoamore recentversion,orsetANDROID_DAILY_OVERRIDE environment variab

1

找了半天也没找到什么原因，把原来的好的工程拿出来看了看，替换了Project下的build.gradle文件，就好了，然后比较新旧两个文件，原来是这里不一样：

旧文件（可以运行的）

// Top-level build file where you can add configuration options common to allsub-projects/modules.buildscript {repositories {        jcenter()    }    dependencies {        classpath'com.android.tools.build:gradle:1.2.3'// NOTE: Donotplace your application dependencies here; they belong        // in the individual module build.gradle files    }}allprojects {    repositories {        jcenter()    }}

新文件（不可以运行的：）

// Top-level build file where you can add configuration options common to allsub-projects/modules.buildscript {repositories {        jcenter()    }    dependencies {        classpath'com.android.tools.build:gradle:2.0.0-alpha1'}}allprojects {    repositories {        jcenter()    }}

原来是classpath升级了，导致的问题！换回原来的就好了

http://blog.csdn.net/zouchengxufei/article/details/50441268