Problem Server has ID conflicts and crashes when updating or removing mods

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zhothaqquah

zhothaqquah

New Member
May 2, 2021
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Currently, I'm running a custom 1.12.2 mod pack. I want to update some mods and remove others. However, when I try to do this, I ultimately end up with ID conflicts and am unable to launch the server. Alternatively, the server just says the item or block is missing and refuses to load without the item or block.

This only happens on the server and does not happen in single player. The only way I have gotten the server to launch is by deleting level.dat. However, entering the world will result in a bunch of mismatched block IDs.

I would appreciate suggestions or advice. Thanks.
 
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