StoryBoard failed - from xcode 8.3.3 to xcode9 beta2

Question

After move my project from 8.3.3 to 9.0 beta2, the storyboard counld not work, it just show the outline of the orignal, and i cant complie it, shows the error below.
Anyone knows why?

Answer 1

Follow these steps to solve your problem:

1. Open your project in Xcode (any 9.0 or 8.3.3)
2. Right 'Click' on story board.
3. Select 'Open As' >> 'Source Code'
4. find keyword 'minToolsVersion' (it may be more than one time) under 'dependencies'. (Look at below images)
5. Update value for minToolsVersion to 8.3 or 9.0 (if you don't want to work anymore with Xode 8.x, then set 9.0 here)
6. Save
7. Again, Right 'Click' on story board.
8. Select 'Open As' >> 'Interface Builder - Storyboard'
9. Now, Xcode Menus >> 'Editor' >> 'Canvas'
10. Remove tickmarks for 'Show Layout Rectanges', 'Show Bounds Rectangles', 'Show Placeholder Rectangles'.

Now you can open your storyboard in Xcode 8.x also.