android 2.2 preview3 編譯bug，androidpreview3

android 2.2 preview3 編譯bug，androidpreview3

// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
    repositories {
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:2.1.0'//確保這個地方是2.1.0 不要使用alpha版本
    }
}

allprojects {
    repositories {
        jcenter()
    }
}