[sgtbash]

Originally Posted by Tim Wood

One way to work around this is to manually reference the files like we did in the TextEditor example (see the Omni Frameworks/OmniUI Headers group in the project).

But I already did this ( even if I didn't know why ). I referenced the files I saw in TextEditor example. I also tried to reference OUIEditableFrame.h but nothing happened. I also tried to allocate it from the code but i get this linker problem :

Undefined symbols for architecture i386:
"_OBJC_CLASS_$_OUIEditableFrame", referenced from:
objc-class-ref in AppDelegate.o
ld: symbol(s) not found for architecture i386
clang: error: linker command failed with exit code 1 (use -v to see invocation)

It seems like the linker does not find OUIEditableFrame symbol, but the target dependencies are the same of TextEditor.

EDIT ( SOLVED ) : Probably cause by XCode 4, even if the library was linked they we're not actually linked. Removing and re-adding them works as expected.

Thank you guys for your help, really appreciated ;-)