i just updated my minecraft and all my mods from 1.4.7 to 1.5.2. every thing works fine except when i try to you my old world save from 1.4.7 industrial craft says theres a block id error with the world config files for ic2 and the config files for ic2. i really dont want to make a new world does anybody know what to do? 
Block id errors
- djay828
- Closed