andrewdodds

Works now, thanks.

In my case, 1.7.2 (00.24) for both.. Thanks

I'm stuck with the same problem on my first mod.. From what I can deduce, it's because the 'standard' game is obfuscated (so the field 'Material.ground', of 'Marterial.rock' will have a different, meaningless name), but I'm not sure how to either re-obfuscate or point it at the correct class. There must be a standard procedure somewhere..