Does your get stuck on building terrein while connection to a server? if not please make a new topicthe server i get on has upgraded to v5 and i want to get on
The modpack can be downloaded in the laucher by changing recommend to V5. Next time please make a new topic when your issue is not the same as OP!where do u get v5 modpack
ive managed to figure out that if trying to add mystcraft to a world that doesn't have it installed the game crashes on trying ot build terrain i turned off mystcraft and my world upgraded without issue.\
Edit: thanks to direwolf20 and easy fix is to change the base default dimension ID to something other then 7 to get it not to conflict. i set it to 100 =D