[Compatability Bug] Causing a crash when run in a mod pack with mods that use Mixins v0.8

[Terminal-Access]

Mod: MalisisCore
Version: 6.5.1
MC Version: 1.12.2
Forge Version: 14.23.5.2854

Hey guys, Im running a SpongeForge setup along with VanillaFix v150 these mods both use a newer version of Mixins v0.8 than that used in MalisisCore, and will crash both server and client due to incompatibility.

Conflicting Mods:
Spongeforge Versions: 1.12.2-2838-7.1.9-RC3976 through 1.12.2-2838-7.2.1-RC4011
VanillaFix Version: 1.0.10-150

Client Crash Log:
https://paste.ee/p/3obTJ

Server Crash Log - with "dirty workaround"
https://paste.ee/p/2UzHg

Dirty Workaround:
Rename Spongeforge to _aaa.Spongeforge...jar
Rename Vanilla Fix to _aab.VanillaFix...jar

This forces SpongeForge and then VanillaFix to load before MalisisCore thus forcing usage of the newer mixins 0.8 version

Even though there is a work around I'm still submitting this as a compatibility bug as well as a request to have the mixins version updated to 0.8

Of note: i have seen a few mod developers handle this by offering builds of their mods that support both 0.7 and 0.8 . (they usually add the mixins verson to the filename)

Thanks for all your hard work it's really appreciated!

Many kind regards
Lee

[wormzjl]

+1 for this

[lamoyrl90]

Same. Log shows issues loading mixins when trying to load with Malisis Core 6.5.1 and Malisis Doors 7.3.0

[Rsslone]

You can simply delete the Mixins library folder from the jar file found in malisiscore-1.12.2-6.5.1.jar\org\spongepowered\asm\ by opening it with a program like 7zip. If you're running into this problem I assume you already have the newer version of Mixins. Honestly I think the author should just require Mixin Bootstrap as a dependency and stop shipping it.

[alexlarraga1]

Same issue

[11:41:35] [main/FATAL] [Sponge]: /************************************************************************************/ [11:41:35] [main/FATAL] [Sponge]: /* */ [11:41:35] [main/FATAL] [Sponge]: /* Oh dear. Another mod loaded an older version of Mixin that Sponge cannot use! */ [11:41:35] [main/FATAL] [Sponge]: /* */ [11:41:35] [main/FATAL] [Sponge]: /*----------------------------------------------------------------------------------*/ [11:41:35] [main/FATAL] [Sponge]: /* */ [11:41:35] [main/FATAL] [Sponge]: /* One of your mods that loaded before Sponge bundles an older version of Mixin. */ [11:41:35] [main/FATAL] [Sponge]: /* This prevents Sponge from loading its own version, which is newer than the */ [11:41:35] [main/FATAL] [Sponge]: /* currently loaded version. */ [11:41:35] [main/FATAL] [Sponge]: /* */ [11:41:35] [main/FATAL] [Sponge]: /* Rename your Sponge jar file so that the filename starts with "__aaa". This */ [11:41:35] [main/FATAL] [Sponge]: /* will cause Sponge and its bundled Mixin version to load first. */ [11:41:35] [main/FATAL] [Sponge]: /* */ [11:41:35] [main/FATAL] [Sponge]: /*----------------------------------------------------------------------------------*/ [11:41:35] [main/FATAL] [Sponge]: /* */ [11:41:35] [main/FATAL] [Sponge]: /* The minimum version of Mixin Sponge requires is: 0.8 */ [11:41:35] [main/FATAL] [Sponge]: /* but the currently loaded version is: 0.7.11 */ [11:41:35] [main/FATAL] [Sponge]: /* */ [11:41:35] [main/FATAL] [Sponge]: /************************************************************************************/

[alexlarraga1]

Solved by changing the name from "spongeforge-1.12.2-2838-7.2.2.jar" to "_spongeforge-1.12.2-2838-7.2.2.jar"