ios - xcode duplicates files in project -


i'm @ complete loss did cause this: second time since started using xcode month ago (my first time using after taking 1 class several years ago) try run project , next thing know have errors because have duplicate references. looked @ project , appeared of files in project had duplicated themselves, discovered not duplicate files duplicate references. happened me today when tried build on actual iphone first time happened me few weeks ago while using simulator. neither time recall doing unusual. have built , tested project 100+ times , goes ok. able fix first time think have made worse time , going add files new project. co-worker mentioned happening him (he has experience xcode do). told me ended files nested in folders (groups?) nested in other folders 20 deep.

my question this: know may have done cause this. avoid problem in future since proving quite headache. advice appreciated.

e.t.a. xcode version 4.6.2 (possibly earlier version first time happened)

try instead:

  1. highlight duplicate files
  2. right click on 1 of files , press "delete"
  3. when prompted delete option, click "remove reference"

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