CODEWITHSUNDEEP
xcodexcode10
forrest
forrest

Reputation: 10982

Why does Xcode 10 Crash?

I am trying to open a project that I created using Xcode 9 with Xcode 10 which I just downloaded yesterday. When I open the project Xcode crashes every time. I am able to create new projects and open others, but this one particular project crashes Xcode every time, regardless of the way I try to open it.

In researching this issue I have done the following in an effort to resolve the problem:

The error message in the Xcode quite unexpectedly popup says:

UNCAUGHT EXCEPTION (NSGenericException): The window has been marked as needing another Layout Window pass, but it has already had more Layout Window passes than there are views in the window.

One other clue, that may or may not be related. I searched through the system log and came across this which was recorded at the same time as the crash:

Failed to bootstrap path: path = /Applications/Xcode.app/Contents/XPCServices/com.apple.dt.Xcode.SymbolicateXPCService.xpc, error = 129: The service was superseded by a later version

I have put a lot of work into this project and would really like to be able to save it. Thanks.

Upvotes: 3

Views: 2061

Answers (1)

forrest
forrest

Reputation: 10982

Per Matt's suggestion, I downloaded Xcode 9.4 and was able to open the problematic project. It opened and I was able to build and run the project. I then closed it out and opened Xcode 10. I was then able to open the project, update it to Swift 4.2 and then build and run the project. Problem solved.

Upvotes: 1

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