MultiMc Crash - help?

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Virgoddess

New Member
Jul 29, 2019
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I'm not entirely stupid about creating my own mod pack, but this has me stumped.

I created a fresh MultiMc instance, on 1.5.1, the only thing I have loaded is Forge version 682.

This is my crash

Exception in thread "main" java.lang.VerifyError: (class: net/minecraft/client/Minecraft, method: fmlReentry signature: (Lcpw/mods/fml/relauncher/ArgsWrapper;)V) Incompatible argument to function
at java.lang.Class.getDeclaredFields0(Native Method)
at java.lang.Class.privateGetDeclaredFields(Unknown Source)
at java.lang.Class.getDeclaredFields(Unknown Source)
at MultiMCLauncher.getMCPathField(MultiMCLauncher.java:312)
at MultiMCLauncher.main(MultiMCLauncher.java:159)

Any ideas?

TIA :)