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lionheart / openradar-mirror

A mirror of radars pulled from http://openradar.me/.
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25364237: Xcode 7.3: Editing Storyboard File Hangs Xcode and Crashes Interface Builder Cocoa Touch Tool #7852

Open openradar-mirror opened 8 years ago

openradar-mirror commented 8 years ago

Description

Summary: Trying to edit certain view controllers in the Main storyboard file in the attached project (extracted from an active project and never modified outside Xcode) causes a lock icon to appear over the Xcode UI and prevents any editing. Meanwhile, the console is filled with “Interface Builder Cocoa Touch Tool” assertion failures.

Steps to Reproduce:

  1. Open the attached Xcode project
  2. Open Main.storyboard
  3. Attempt to edit or delete, for instance, the rightmost “String View Controller”

Expected Results: The edits succeed, Xcode works normally

Actual Results: A lock icon in an overlay HUD is shown, no changes are applied to the storyboard, and the system log is flooded with the following over 100 times per second: 3/25/16 2:34:50.494 PM Interface Builder Cocoa Touch Tool[12715]: assertion failed: 15E65 13E230: libxpc.dylib + 27596 [66C28065-C9DB-3C8E-926F-5A40210A6D1B]: 0x8d

Sometimes Xcode settles down and becomes responsive again until another item in the storyboard is edited. Sometimes it remains unresponsive until force quit.

Regression: This problem appeared concurrently with Xcode 7.3, but I am also able to reproduce it on Xcode 7.2.1. I am not sure if it is related to system tools included with Xcode 7.3 that are also used by 7.2.1 or not.

Notes: The attached storyboard includes references to classes that are not included with the project, but the problem persists in the original project as well.

Product Version: Xcode 7.3 (7D175) Created: 2016-03-25T19:45:39.768950 Originated: 2016-03-25T14:45:00 Open Radar Link: http://www.openradar.me/25364237

openradar-mirror commented 8 years ago

Modified: 2016-03-25T19:45:39.769120