Unable to launch /private/var/containers/Bundle/Application/...

I have updatet my iPod to IOS12. Now when i start my App with Xcode i get this message:


Unable to launch /private/var/containers/Bundle/Application/41138EE4-099E-4125-A3F7-07CBC254D73C/myapp.app


I also get this error when i'm starting with a fresh project in Xcode.


Also my clients who have updatet to IOS12 are reporting that their app is not functioning anymore.


I don't know what else to describe. I have tried it with a new provisioning profile without luck. Xcode is the beta version.


Any help or ideas are appreciated.


Thanks.