one user is getting with one of out lib the following: > java.lang.LinkageError: loader constrain...

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[elect]

one user is getting with one of out lib the following:

java.lang.LinkageError: loader constraint violation: when resolving method "imgui.ImGui.begin(Ljava/lang/String;Lkotlin/reflect/KMutableProperty0;I)Z" the class loader (instance of net/fabricmc/loader/launch/knot/KnotClassLoader) of the current class, net/aaa/bbbb/gui/screen/ModScreen, and the class loader (instance of sun/misc/Launcher$AppClassLoader) for the method's defining class, imgui/ImGui, have different Class objects for the type kotlin/reflect/KMutableProperty0 used in the signature

since he updated from 1.4.0 to 1.4.10, has anyone encountered something similar?

[Petter Måhlén]

at a guess, you have two different versions of kotlin-reflect that are loaded by different classloaders

[elect]

sorry, but what kotlin-reflect would ever have to do with this?

[Petter Måhlén]

kotlin/reflect/KMutableProperty0 made me think about that - and i have had issues with kotlin-reflect and class loaders before, because of how it’s loaded from stdlib. but it’s a wild guess at something to check

[elect]

Ok, thanks for the hint, I'll try investigate on

[Nikky]

until someone PRs 1.4.10 to FLK you may have to stay on 1.4.0 or jij the stdlib yourself

[elect]

flk?

[elect]

@Nikky

[Nikky]

fabric-language-kotlin https://github.com/FabricMC/fabric-language-kotlin

[Nikky]

the FLK shadows (jar-in-jar mechanism of the loader) kotlin-reflect