Invalid target channel.driver error Well I'm quite a newbie in Blender and I'm currently using the Cg cookie baker animation. All of the rigs work, except the facial shape keys won't work with the bones. In the graph editor the drivers show "invalid target channel" although everything is already set up and it still shows even when I click "update dependencies"
It looks like you are using an old copy of the rig, probably the version that was included with the animation course which was made in v2.56. The new version of baker has changed a little.

Go to the CGCookie resource page and download the current version of the baker rig.