Dependencies when using SoundCue in c++

This only worked one time. The scond time I compiled I got the error “C://Program Files (x86)/Eoic Games/4.11/Engine/Source/Runtime/Engine/Public/SoundCue.h(11): struct: ‘SoundNodeEditorData’ conflicts with class name”.

Why did this work once, but now it won’t compile. What can I do to get it working?