The import android.support.v7 cannot be resolved 完美解决方案

出现如下错误：

The import android.support.v7 cannot be resolved

 

分两个步骤来解决：

1.下载android-support-v7-appcompat.jar，放到lib目录下，Eclipse->project/properties/libraries->Add external Jars, 增加android-support-v7-appcompat.jar.

2.重新编译，会出现如下问题：

The type android.support.v4.app.TaskStackBuilder$ SupportParentable cannot be resolved.

处理如下：

将sdk目录下的android-support-v4.jar，放到lib目录下，Eclipse->project/properties/libraries,先删除之前的android-support-v4.jar，再add新的android-support-v4.jar即可。