An internal error occurred during: "Launching New_configuration". Path for project must have only on 在Eclipse中按照如下操作 Project -> Properties -> Run/Debug Settings: 1. select "Launching New_configuration" 2. Delete 3. OK Keep it simple! 作者：N3verL4nd 出处：http://www.cnblogs.com/lgh1992314/ 知识共享，欢迎转载。