Yesterday, I\'ve downloaded beta version of Xcode 11. After that, I\'ve opened my project and tried to run with new Xcode. Unfortunately error has occurred with message:
I had the same problem. I find the Xcode 11 Beta Release Notes had explain it.
Bundles without a CFBundleVersion are invalid and can’t be properly installed on
devices or simulators. CoreSimulator now checks and rejects such bundles earlier in
the process with a clearer error message. (49892531)
And this link is the format of CFBundleVersion.
When I resolved this problem, I found out if having the CFBundleVersion problem when running App for the first time. Then it always has problem no matter whether the format is correct or not. So I restart the Xcode and the Simulator, and change the CFBundleVersion to a correct format, the App running correctly.