I load my project from xcode 5 to xcode 6 and see error myProject-prefix.pch is not found in myProjectTests, I add this file and see new error
Ld /Users/will
Do as follows, changing [Precompile Prefix Header] with [no] and [Prefix Header] with empty field.
[Project]
-[Basic]
-[Apple LLVM6.1-Language]
--[Precompile Prefix Header]-[no]
--[Prefix Header]--[]
Just change your scheme name to what ever you want.Clear the project then compile it. Its working for me .