The document ".Storyboard" could not be opened. Unrecognized file content.

I just upgraded to Xcode 8 and now I get these errors when I attempt to open a storyboard


What do I need to do in order to fix this error?

To follow up on this.


If the storyboard is setup specifically for a device (theh old autolayout compact height regular width) for instance, then I can open the storyboard. If the storyboard is setup with (any)height | (any)width, then I can't open the storyboard.


This is a critical issue, I can't continue using Xcode 8 until this is resolved.

Did you figure out how to fix this ? I still have the same issue. Can't figure out a way out of this. Trying to download XCode 7.

No, I have not been able to work around it. I eventually gave up and re-installed Xcode 7. I still have a machine that has Xcode 8 and I plan on building a sample to submit to apple for a bug, but project deadline pressures are preventing me from getting that done.

Accepted Answer

Make sure the storyboard extension should start from lower case s.

Ex: it should be "Test.storyboard" not "Test.Storyboard"

that's it. stupid issue, but changing the capital 'S' to a lowercase 's' did the trick.

The document ".Storyboard" could not be opened. Unrecognized file content.
 
 
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