iphone - Why am I getting this "libxml/tree.h file not found" error? -

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i installed xcode version 4.3.1 , error:

libxml / tree.h file not found

i have installed xcode 4.2, , same project same error.

i have configured header search paths /usr/include/libxml2
tried $(sdkroot) / usr/include/libxml2 , didn't work.

i have put other linker flag lxml2

include following in header search path , should immune weirdness apple xcode updates:

$(sdkroot)/usr/include/libxml2

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