Xcode无法启动app。进程启动失败:4294967295。

I'm developing an iOS 8 app in Xcode 6.0.1 and running it on my iPhone 5 (which has iOS 8.0.2 on it). Before I updated to iOS 8.0.1 and Xcode 6.0.1, I never got the error I'm getting. However, now, sometimes when I try to run my app from Xcode onto my iPhone, this error message pops down from the top of the Xcode window:I'm developing an iOS 8 app in Xcode 6.0.1 and