Error consisting of mod loader class

[Animus_Surge]

Hello,

 

I have just recently (as in the day of me putting this up) started getting a LoaderException with random mods that I use in a custom modpack using the curse client. It closes the game and presents me with this:

 

The game crashed whilst there was a severe problem during mod loading that has caused the game to fail
Error: net.minecraftforge.fml.common.LoaderException: bibliocraft Failed load class: jds.bibliocraft.BiblioCraft

Here is my procedure that I used to determine if it was a mod or an FML problem (just in case this helps):

 

1. Disable the mod

2. Try to launch the game again

 

Basically, I disabled Bibliocraft (which the curse client changes the mod file extention to a .disabled file which the modloader does not read) and then relaunched the game to see what happens.

 

It then gave me the same error with a different mod:

 

Error: net.minecraftforge.fml.common.LoaderException: ctm Failed load class: team.chisel.ctm.CTM

 

I have absolutely no clue as to what has been going wrong, and regular minecraft from the twitch client works just fine. A full log (from one of the modded ones) is provided in a pastebin link below.

 

Thank you and have a great night/day/weekend/whatever,

 

Surge

 

The log: https://pastebin.com/kiVkzNZR

 

EDIT: Super really quick thing, it only happens to one of my user created modpacks (which I have two at the moment), if this helps anything

Edited July 1, 2019 by Animus_Surge

[quadraxis]

[21:56:14] [main/INFO]: Searching C:\Users\swag100107\Documents\Curse\Minecraft\Instances\Railz!\mods for mods

 

This is the issue. Due to a technical limitation in Java and the JAR format, you cannot use a directory name ending in '!' here.

[Animus_Surge]

Okay, I'll rename the directory and see if it works

 

EDIT: Thank you, I should have suspected it was the non alphanumeric character that was the issue, as I assumed that, like the game does, the directory would turn it into an underscore. I see now that I was wrong. Once again, thank you for your help.

Edited July 1, 2019 by Animus_Surge