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 ran into this again today, I would recommend you wrap the path in quotes:

"$(SDKROOT)/usr/include/libxml2"

I wasted half an hour on this due to having spaces in my path.