world id mismatches with mindcrack 8.2

[Slind]

Hey guys,

i tried to update my minecraft server, but when i try to login i get this message.

Forge Mod Loader has found world ID mismatches
ID4091 ModID GregTech_Addon, tiype GT_LeadBlock is missing
ID4092 "" GT_TransparentTileEntity ""
ID4093 ""
ID4094 ""
ID4095 ""

How is this possible, have they deleted items from GregTech ?
Well what can i do to fix it?

 

[WitherSauce]

Sometimes when updating mods, the mods will change or generate new config files with new IDs. The only way to fix is to roll back the server map to before you updated, then update the mods, run the server, kill the server without saving the world, and then manually edit the old IDs back into the new/ changed config files.

The crucial part is not to save the world with the new IDs, because yes, any placed gregtech block of that ID before the update will be deleted after the update if the ID has changed.

 

[Slind]

there is nothing with this id. and for example the gt_leadblock is there only in the recipes advanced config, with true/false and if i search ingame for this id i cant find it

so whats wrong?