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Alternate titles to aid search Xcode can't find header Missing .h in Xcode Xcode .h file not found lexical or preprocessor issue file not found I'm working on an iOS application project which came from Xcode 3. I have now moved to Xcode 4 my project builds a number of static libraries. Those static libraries also declare public headers and those headers are used by the application code. In Xcode 3.x the headers were copied (as a build phase) to the public headers directory , then in the application project the public headers directory was added to the headers search list . Under Xcode 4 the build directory is moved to ~/Library/Developer/Xcode/DerivedData/my-project . The problem is how do I reference this new location in the headers search settings? It seems that: public headers directory is relative to DerivedData directory, but headers search directory is relative to something else (possibly the project location) How should I set up a static library target for iOS development in Xcode 4 that will ensure the header files are made available to the clients that use the static library when trying to compile as a dependancy?

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