An internal error occurred during: "Launching New_configuration".

 自己新建工程，写的程序，用模拟器运行OK。
   一旦导入一些简单的demo就报错，An internal error occurred during: "Launching New_configuration".
Path for project must have only one segment.
   problems里面显示: the type  R is already defined

 

解决办法：

在Eclipse中按照如下操作

Project -> Properties -> Run/Debug Settings:
1. select "Launching New_configuration"
2. Delete
3. OK