Xcode 6 Swift code completion not working

Question

Using Xcode 6 GM seed my code completion has stopped working. It was working the other day. I was trying to get the unwind segue work around to work. I had made an Objc head

Answer 1

I just recently had this problem. Autocomplete did not work ...and when i typed for example tableView.... it did not give me the different functions available.

I tried the following and it worked for me.

1. Xcode Organizer -> Projects -> (Your Project) -> Delete Derived Data

2. delete the file ~/Library/Developer/Xcode/DerivedData/ModuleCache

3. Restart xcode

Hope this works