This generally means that another instance of this process was already runni

This generally means that another instance of this process was already runni

 

今天开发demo的时候遇到过好几次这样的问题。

重启Xcode, 重启iphone模拟器，都不行。

最后重启mac系统搞定，问题很诡异。

看网络上很多人实机测试遇到这样的问题。也基本无解，只能通过重启设备（iphone）解决。