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as many others i face the problem that my xcode (4.3.2) tells me:

 cc1obj: warning: /Users/myname/Library/Developer/Xcode/DerivedData/Foo-afikuaovoaeqhreaaaakpafseuuv/Build/PrecompiledHeaders/Foo_Prefix-guqixmujoiaaaacwjctfkrztxmbz/Foo_Prefix.pch.gch: created by a different GCC executable
 cc1obj: error: /Users/myname/Library/Developer/Xcode/DerivedData/Foo-afikuaovoaeqhreaaaakpafseuuv/Build/PrecompiledHeaders/Foo_Prefix-guqixmujoiaaaacwjctfkrztxmbz/Foo_Prefix.pch: No such file or directory
 cc1obj: error: one or more PCH files were found, but they were invalid

When i want to Debug my Application via inspector. Building and running the app in development works fine, release also breaks it.

now the common tricks were to clean my build folder ( + alt key .. ) or deleting the derived-data folder entirey. both done, no effort.

any information i can provide the get some help? :)

Cheers.

thedanielhanke
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1 Answers1

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This may sound nuts, but had a similar thing (not quite the same) happen recently. I ended up actually deleting the Derived Data folder in finder -- after the clean --, and that resolved it for me.

YvesLeBorg
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  • @dhanke oups, i misread your comment in the question. Well, the plot thickens ... soon I fear I will need some sort of incantations book to work around Xcode's exquisite undocumented features. – YvesLeBorg Mar 23 '12 at 20:30