Xcode编译我的应用程序，但无法在模拟器中运行它 [英] Xcode compiles my App, but can't run it in the simulator

问题描述

当我编译我的应用程序时，Xcode只是说附加到Projectname ...并被卡在那里。
调试器只打印出来：

when i compile my app, Xcode just says "Attaching to Projectname..." and gets stuck there. The debugger just prints this out:

错误：无法附加到进程ID 0

error: failed to attach to process ID 0

我试图清理&再次构建，它仍然没有成功。我用谷歌搜索，但找不到任何有用的东西。
我该如何解决这个问题？谢谢！

I tried to clean & build again and it still doesn't work out. I googled but couldn't find anything helpful. How can I fix this problem? Thank You!

推荐答案

我的解决方案是删除Xcode之前生成的所有内容：

The solution for me was to delete everything Xcode has generated earlier:

• 模拟器上的应用程序...如果由于你不能通过
  到达主屏幕而无法做到这一点，你可以直接在
  <$下删除应用程序c $ c>〜/ Library / Application Support / iPhoneSimulator / 6.0 / Applications


• 删除项目组织者中的派生数据或直接
  in 〜/ Library / Developer / Xcode / DerivedData


• 通过在MenuBar中选择Product来清理Build文件夹，然后点击
  按清洁构建文件夹上的Alt键时


• 重新启动Xcode

• the App on the Simulator...if this is not possible because you cant reach the Homescreen, you can delete the App directly under ~/Library/Application Support/iPhoneSimulator/6.0/Applications
• delete the Derived Data in the Organizer under Projects or directly in ~/Library/Developer/Xcode/DerivedData
• clean the Build Folder by choosing "Product" in the MenuBar and click while you press the Alt-key on "Clean Build Folder"
• Restart Xcode

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