I am using Xcode 5.1.1 and came across this weird problem.
When i add new files in Xcode, these files do not have the colored syntax, and auto complete doesn't work (in only these files, already existing files are ok).
I have tried solutions on these previously asked questions (deleted DerivedData from organizer)
And it got even worse.... now even the already existed files stopped showing syntax in colors.
What should i do to make it work again?