我发现在Build Options中将我的编译器更改为LLVM 6.0对我来说就足够了(xcode 6.1)

按下运行/停止按钮右侧所需按钮，选择方案菜单:

按编辑方案…：

选择你的可执行文件:

None of the provided answers worked for me. In my case, I finally fixed the error by updating the target architectures in Build Settings/Architectures/Valid Architectures to $(ARCHS_STANDARD), as arm64 was missing. This was not prohibiting the project to build, although a warning was issued recommending updating the valid architectures, but the "app could not be opened" error was shown at run time. I surmise this error is rather generic and not always linked with a permission issue, but may be displayed when the generated app package is invalid.

在Xcode中执行以下操作

窗口->组织者->项目->应用程序的问题->删除按钮在派生数据。

然后我清理了项目，瞧

作品

我也遇到过类似的问题。不知何故，我的值键可执行文件混淆了。只需将其更改回${EXECUTABLE_NAME}(在您的项目> Info下)。为我工作!

我能够从xcode 6.1之前的备份中恢复我的项目，

一旦我从不同的目录打开我的工作空间，我就能够运行我的目标而不会出现这个错误。 模拟器现在也可以正常工作了。