I swear just before I reinstalled on my pack on Twitch (I have the latest version.) The game crashes due to
java.lang.NoClassDefFoundError: Lgigaherz/toolbelt/belt/ItemToolBelt;

I know it's tool belt because it was working before I re-downloaded the latest version from curseforge

I am running 1.12.2, latest version of forge (14.23.5.2854)

Can you show the log file? The latest version for 1.12 has 1.5 million downloads. No one has ever complained about it doing this, so I have to assume this crash is a consequence of some other problem.

In case your jar file somehow got corrupted, this is what it should hash as:

CRC32: 74B8FC22
MD5: 045CB4CB4A3C9DAF59BF4658E293CEC8
SHA-1: 1BD0829B5A762DFAF823EBCDE166DDA33B559E2F
SHA-256: 590772AFA32282299248D38C230CCDDCE3A3FE2CFA9969CBAC98F98CA55AC49A

When I am able to get on my computer later I will. But my jar is not corrupt. I was automatically downloading the jar from curse forge according to the manifest.json. I think some of my other people were having the same issue. But using (the same version) but a older jar that didn't give me issues before fixed it. But I tried to export it into the zip and that did nothing.
Edit: Sorry forgot to mention I can get you the log when I get on in around 2-3 hours.

Can you show the log file? The latest version for 1.12 has 1.5 million downloads. No one has ever complained about it doing this, so I have to assume this crash is a consequence of some other problem.

In case your jar file somehow got corrupted, this is what it should hash as:

CRC32: 74B8FC22
MD5: 045CB4CB4A3C9DAF59BF4658E293CEC8
SHA-1: 1BD0829B5A762DFAF823EBCDE166DDA33B559E2F
SHA-256: 590772AFA32282299248D38C230CCDDCE3A3FE2CFA9969CBAC98F98CA55AC49A

I don't know how to check the hash on a jar. But if I would if I knew

I like to use a windows explorer extension called "hashtab", you can get it from here, but there's other tools.

I like to use a windows explorer extension called "hashtab", you can get it from here, but there's other tools.

Ok. I will check it out. It was since windows xp when I last installed WE extensions wow

Just kidding, someone just installed the pack fresh and it did it, here's the log file
https://gist.github.com/Wohlf-craft/43e15d261935f631b84608d5a5daf366

I can't compare the hashes because it's not my computer and I can't tell them to install something like that. But I may be able to try on my own.

Aha! That one does show the issue:

java.io.FileNotFoundException: C:\Users\mathi\Twitch\Minecraft\Instances\Wohlf_pack Self Questing Edition (1)\mods\memory_repo\gigaherz\commons\gigaherz.commons-1.12.1\0.6.4\gigaherz.commons-1.12.1-0.6.4.jar (The process cannot access the file because it is being used by another process)

Something is causing the contained library "gigaherz.commons" to fail to extract, leading to

Caused by: java.lang.ClassNotFoundException: gigaherz.common.ItemRegistered

Which is why it fails to load ItemToolBelt. This is either a problem in forge (possibly a race condition), or some antivirus. In either case, it should fix itself trying to load again (may take more than one try).

The only thing I can do to help is release an update that uses shading instead of contained dependencies, which could very slightly increase the memory usage (a few kb) if you have more than one of my 1.12 mods.

I can't seem to replicate the issue now, maybe something was screwing the jar. But dont close it yet.

Fixed as of 1.12.2-1.9.13, should be up on curseforge in a moment.

uhhh
I don't have any mods other than tool belt. It's not a anti-virus, I have tested on 2 different windows machines now, mine which I use vanilla windows defender and free malwarebytes (no live malware defending) and I am not sure what the other has. It didn't do this to one of my other friends, he updated the pack and it didn't do it for him. But it did for me. It only happens when it auto-downloads the jar from curseforge. So currently, I am giving my friends the other jar that doesn't cause that issue for them to replace it. I think it has to be forge, because forge just updated to a newer version for 1.12.2, and I don't think anyone else has seen this issue or something, if they have they don't know github exists, or no one has seen the issue because they don't know forge needs updating. So I would blame it on forge. I don't know if it would fix it's self trying to reload it many times. But I will test it myself to see if it does or not.

which could very slightly increase the memory usage (a few kb) if you have more than one of my 1.12 mods.
as long as it's not taking more than 100 kb I am fine. Sadly, my computer can barely handle my own pack :(.

edit: why did it do that the quote block. I am so bad at markdown formatting

Welp maybe something broke in forge or whatever. I'll do the workaround. It's annoying but 🤷

Welp maybe something broke in forge or whatever. I'll do the workaround. It's annoying but 🤷

Rip