Fink can't resolve xcode dependency

Question

I just upgraded my xcode to 4.5.2 and ran

xcode-select -switch /Applications/Xcode.app/Contents/Developer

but when I try to install pygtk, I get an error:

fink install pygtk2-gtk-py27

Output:

Information about 6815 packages read in 0 seconds.
Can't resolve dependency "xcode (>= 4.4)" for package "pixman-0.28.2-1" (no
matching packages/versions found)
Exiting with failure.

How do I correct this? Also, I'm only trying to install pygtk this way because other ways for my mac haven't worked. When I run the following with python:

import gtk

If I install with homebrew I get an error that says it can't find gtk. When I install from macpkg as per the second answer in where-is-pygtk-for-mac-os-x I get a segmentation fault

Answer 1

In addition to upgrading my Xcode, it was necessary to install (again) Command Line tools. For a description of this process, see this answer.