7. gradle-plugin and the gradle version说明：
There is a relation between gradle-plugin and the gradle version. For example
com.android.tools.build:gradle:0.6.+  -> gradle 1.8
com.android.tools.build:gradle:0.7.+  -> gradle 1.9
com.android.tools.build:gradle:0.8.+  -> gradle 1.9/1.10
com.android.tools.build:gradle:0.9.+  -> gradle 1.10/1.11
You can find gradle version used in your project in the file gradle/wrapper/gradle-wrapper.properties
Also there is a relation between gradle-plugin and the IDE version. For example:
Android Studio 0.3.x -> gradle-plugin 0.6
Android Studio 0.4.x -> gradle-plugin 0.7
Android Studio 0.4.3+ -> gradle-plugin 0.8
Android Studio 0.5.x  -> gradle-plugin 0.9
For updated news you can check this link: http://tools.android.com/recent
　　8. 错误问题如下：
!!! JUnit version 3.8 or later expected:
java.lang.RuntimeException: Stub!
at junit.runner.BaseTestRunner.<init>(BaseTestRunner.java:5)
at junit.textui.TestRunner.<init>(TestRunner.java:54)
at junit.textui.TestRunner.<init>(TestRunner.java:48)
at junit.textui.TestRunner.<init>(TestRunner.java:41)
解决方法：(https://github.com/robolectric/deckard-gradle)
For Intellij， go to Project Structure -> Modules -> deckard-gradle pane. In the Dependencies tab， move the Module SDK dependency (i.e. Android API 19 Platform) to be the last item in the list.
For Android Studio， dependency ordering is currently not modifiable via any GUI. Therefore， you must modify the project iml file directly as such and reload the project:
<orderEntry type="library" exported="" scope="TEST" name="wagon-provider-api-1.0-beta-6" level="project" />
<orderEntry type="library" exported="" scope="TEST" name="xercesMinimal-1.9.6.2" level="project" />
<orderEntry type="jdk" jdkName="Android API 19 Platform" jdkType="Android SDK" />
<---make sure this is the last orderEntry
</component>
</module>
　　9.下载android sdk和platform API参考地址：
　　http://xtbbbbdx.blog.51cto.com/3506227/1009209
　　android-3.0_r02-linux.zip的下载链接
　　http://dl.google.com/android/repository/android-3.0_r02-linux.zip
　　10:  NoClassDefFoundError: com/intellij/rt/execution/junit/JUnitStarter: com/intellij/rt/execution/junit/JUnitStarter
　　解决方法：？？？
　　11. No resource found that matches the given name 'Theme.AppCompat.Light.DarkActionBar'.
　　解决方法：
　　using android-support-v7-appcompat.jar lib inside libs folder
　　(compile'com.android.support:appcompat-v7:19.0.+')