Why am I getting this “libxml/tree.h file not found” error?

Question

I just installed Xcode version 4.3.1 and I get this error:

libxml / tree.h file not found

I have also installed Xcode 4.2, and

Answer 1

I solved the problem by setting the Header Search Path to:

${SDK_DIR}/usr/include/libxml2

and Always Search User Paths to NO (which is strongly suggested anyway) This just in the target.