Xcode does not contain sentences (autocomplete)

Question

I have a quick project in Xcode 6. Something happened to my project that makes my suggestion (autocomplete) not working.

• The problem is with my current project. Other projects work well.
• I tried to remove Derived Data.
• Reinstall Xcode
• Remote .workspace in the project
• Tried the "header path".

I am looking for an answer, and none of this works.

One more thing: after deleting derived data, when Xcode RE-indexing autocomplete is WORK. But when he finished autocomplete, it does not work again. Is this something with a workspace?

Answer 1

• Clear the received data.
• " " "YES".
• .

Answer 2

SO Defines Module build true. .

, Defines Module build false

, !