I Installed the Xcode 12 GM today & I was able to run a debug build on-device & upload a distribution build for TestFlight. However, the Main.storyboard file refuses to load. Xcode either freezes or the activity indicator spins endlessly. This wasn't a problem on Xcode 11. Is anyone else experiencing this issue?
Xcode 12 GM: Main.storyboard doesn't load
I was able to "regain" access to my Main.storyboard after removing some auto layout constraints that produced runtime warnings. I edited the source code of the storyboard to remove the constraints and, voila, the storyboard loaded properly.
Where did you remove the auto layout constraints ? Wasn't it in the mainStoryboard ?
When you have problem with storyboard, it may be a solution to open as XML and try to find is something is wrong (by comparing the same file opened with Xcode 11 for instance).
When you have problem with storyboard, it may be a solution to open as XML and try to find is something is wrong (by comparing the same file opened with Xcode 11 for instance).
I am seeing the same problem. How did you identify the constraints with runtime warnings if the storyboard doesn’t load? Go back to Xcode 11 and remove them there?