build status changes to "invalid binary" After successful processing

this is a new one to me


after i upload a build, it processes ok, and I approve it for test flight and approve it for external beta,

build status changes to invalid binary. i get a push notification of this on my phone probably

from test flight app indicating this invalid binary status.


what causes this?


I see now get an email now indicating:


Invalid Swift Support - The file libswiftCore.dylib doesn’t have the correct code signature.


I had installed the latest Xcode but I am not using it yet. Maybe that caused the old Xcode libraries to get trashed.


Providing yet another reason to avoid coding in Swift.


Objective C, for the win.

build status changes to "invalid binary" After successful processing
 
 
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