标签：ar sp on bs ad app nbsp c ca
The following processes can solve this problem:
1.open the project strcture
2.select the top moudle of the project
3.In the tab of sources,deleting the Content root where the error appeared.
Intellij 12 error: the root already belong to .....
标签：ar sp on bs ad app nbsp c ca
原文地址：http://www.cnblogs.com/woodynd/p/4075078.html
