Xcode 7.3 autocomplete is so frustrating

Question

There is a new autocomplete in Xcode. Probably might be useful because it checks not only beginning of names etc. But I found that very often it doesn\'t find a class name o

Answer 1

After having tried different methods:

• Delete Derived Data
• Switching Module Enabled off in Build Settings
• Full Clean
• Relaunch

Only this worked:

• Find any commented out (/* abc */) code after @end in your files and delete.

Credit to Max_B: https://forums.developer.apple.com/thread/7439

In my case, other projects were auto-completing correctly. If all your projects fail to correctly predict code, then it might be a different issue, and the other answers might work.