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Since I updated Xcode to the latest version I get a lot of warnings and I could not find clear explanation/solution, first it used to be just when I was testing on simulator but now I also get it when testing on device.

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I tried this https://forums.developer.apple.com/thread/17921 but it did not helped me that much, I managed to get rid of the warning from the app extension but not the app itself. Anyone who encountered similar problem and managed to solve it?

dstudeba
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beowulf
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  • Have you solved it? I am having the same problem too. – Tripti Kumar Dec 14 '15 at 10:09
  • Well , I did re download the older simulators and after I did set the build settings again as in the link above and it seems to be fine now , no warnings and behave as expected. – beowulf Dec 14 '15 at 20:27

2 Answers2

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This worked for me:

  1. Targets -> [your project] -> Build Settings
  2. Find and expand "Debug Information Format"
  3. Change "Debug" value to "DWARF"
  4. I left "Release" value unchanged as "DWARF with dSYM File"

I read that Debug builds don't need dSYM files.

thedonniew
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This is probably due to changes in the build process across different Xcode versions, I am having this problem again with version 8.3.3 (8E3004b), so if this is happening just after an update you can fix it shutting down Xcode and deleting folder

~/Library/Developer/Xcode/DerivedData

which gets created again after the first build. About the risks of deleting that folder you can check this question

Edoardo
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