ios - Objective C new Header File marked with gray icon and cannot import Frameworks -

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i new xcode , objective may doing stupid haven't been able find solution following problem:

1) create new header file in want import framework (drobboxsdk.h) 2) icon file darker other files 3) can't import dropbox header using <> nor autocomplete me (as all other existing files...

what doing wrong? how come previous files can import framework?

i ve tried add build phase in build phases dialogue tutorial suggested submenu in build phase greyed out...

dark icon means have unsaved changes in file.
if can't import sdk in other classes too, make sure have set correct header search path.

also, xcode has bug autocompletion in cases, write yourself
#import <dropboxsdk/dropboxsdk.h>


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