Board Thread:Questions and Answers/@comment-67.142.172.20-20130614013222/@comment-5627887-20130623133254

I had the problem after having a break from Tekkit of a few months, they'd changed the launcher when I got back without me realising, and when I ran my outdated launcher, it kind of semi-updated, but not fully. I was able to load Tekkit Lite, but it wasn't fully downloaded, very odd that it had some functionality rather than just refusing to work.