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

In your question, you have a space between the / and usr. Perhaps this is a typo, but the path is:

/usr/include/libxml2

Just confirm that is the path in the target build settings:

You can also verify that the path exists on your file system.

Answer 2

Include the following in your header search path and you should be immune to any weirdness Apple does with their Xcode updates:

$(SDKROOT)/usr/include/libxml2

Answer 3

The correct path is (for 'Header Search Path'):

/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS5.1.sdk/usr/include/libxml2/**

Answer 4

I have the same problem.

I try set path( 'Header Search Path') to /usr/include/libxml2 ,build error!

I try set path( 'Header Search Path') to $(SDKROOT)/usr/include/libxml2 ,build error!

but I set path to

/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS5.1.sdk/usr/include/libxml2

build succeeded!

Answer 5

2 solutions:

1. header search path should be updated with SDK root as such: $(SDKROOT)/usr/include/libxml2
2. Install command line tools for XCode 5 from terminal by entering: xcode-select --install XCode 4 should have the command line tools install option in preferences>downloads section.

I'd personally go with the second one.

Answer 6

Xcode 6:

Do the following:

1.0)Select "mainApp" Target : Go to settings ->In "Header Search Path"

1.1)Add this: /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk/usr/include/libxml2.

2.0)Select "TestApp" Target : Go to settings ->In "Header Search Path"

2.1)Add this: /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk/usr/include/libxml2.