Just thought I would chime back in and say, I finally found something in the google webmaster tools forums saying this is a “google” problem.
http://www.google.com/support/forum/p/Webmasters/thread?tid=31379a96e11b23c5&hl=en
http://www.google.com/support/forum/p/Webmasters/thread?tid=52fa55f0c09b11e8&hl=en
Basically, google is trying to crawl some javascript code. It seems engineering has fixed the issue, as people (including myself) are starting to see 404 counts go down.
So, you should be able to just wait it out.
Thanks!
I’m seeing this same thing. For every page/link on my site, for some reason google is trying to look for: http://example.com/page/undefined and getting a 404. =/
Any luck finding the cause netslacker? I can’t figure out where it’s getting this link from… it’s not in the source for the pages.