Ad hoc archive complaining about libxml (no such file or identity)?

I ran my app in simulator and on 开发者_JAVA技巧my device and everything worked fine, but now I am trying to do an ad hoc distribution and it's complaining that libxml/parser.h (no such file or identity). What am I missing? Thanks

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Add this to your "Header Search Paths"

$(SDKROOT)/usr/include/libxml2