NSLayoutConstraint crash
NSLayoutConstraint crash
- Subject: NSLayoutConstraint crash
- From: David Catmull <email@hidden>
- Date: Fri, 16 Mar 2018 09:03:06 -0600
After I set up a somewhat complex view hierarchy, I'm getting a crash with
this exception:
2018-03-16 08:59:21.814873-0600 App[31201:13046721] *** Assertion failure
in -[NSLayoutConstraint setPriority:],
/BuildRoot/Library/Caches/com.apple.xbs/Sources/Foundation/Foundation-1451/Foundation/Layout.subproj/NSLayoutConstraint.m:222
It happens on the main event loop where none of my code is involved; I
never set constraint priorities myself. What could be causing this error?
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