Fixed.
"Go to C:/Games/Overwolf/Minecraft/Install/libraries/net/minecraftforge and delete fmlcore, javafmllanguage and mclanguage. Then you'll have to get Curse to reinstall those, I do not know if it does it automatically."
Forge does redownload the files.

 

No mods installed, all other version work.
Java is as far as I am aware, and as far as Java's updater seems to be aware is up to date.
There is no crash log generated.

Any assistance would be greatly appreciated.
Thanks in advance for any help.

Log file:
[17:25:13] [main/INFO]: ModLauncher running: args [--username, PestoPosta, --version, forge-39.0.10, --gameDir, C:\Games\Overwolf\Minecraft\Install, --assetsDir, C:\Games\Overwolf\Minecraft\Install\assets, --assetIndex, 1.18, --uuid, 2856a5d31bc8411a8d826ece9d25c45a, --accessToken, ????????, --clientId, YzQyMmI4M2YtNTg4My00ZGVkLThiMmMtZmFkMGI4MGZiMjA3, --xuid, --userType, mojang, --versionType, release, --width, 1024, --height, 768, --launchTarget, forgeclient, --fml.forgeVersion, 39.0.10, --fml.mcVersion, 1.18.1, --fml.forgeGroup, net.minecraftforge, --fml.mcpVersion, 20211210.034407]
[17:25:13] [main/INFO]: ModLauncher 9.0.7+91+master.8569cdf starting: java version 17.0.1 by Microsoft
[17:25:13] [main/INFO]: SpongePowered MIXIN Subsystem Version=0.8.5 Source=union:/C:/Games/Overwolf/Minecraft/Install/libraries/org/spongepowered/mixin/0.8.5/mixin-0.8.5.jar%2319! Service=ModLauncher Env=CLIENT

Edited January 4, 20223 yr by PestoPosta

I assume you mean this, if not let me know where to find it, and it will be up momentarily.

Thanks quick response.

This should be it.
https://gist.github.com/PestoPosta/57b746846d57caa57fd0288aee549e4d#file-gistfile1-txt

Edited January 3, 20223 yr by PestoPosta

Additional info, Restarting the comp did not fix the problem.

1 hour ago, diesieben07 said:

You have an invalid Jar file in your mods folder.

Again there are no mods installed, for that instance.
Mod folder is empty.

Unless one instance some how effects the other instance?

8 hours ago, diesieben07 said:

It seems Curse launcher has failed at installing some Forge core libraries.

Go to C:/Games/Overwolf/Minecraft/Install/libraries/net/minecraftforge and delete fmlcore, javafmllanguage and mclanguage. Then you'll have to get Curse to reinstall those, I do not know if it does it automatically.

That did it thanks much.
I never would fix the issue so quickly if I were fiddling with it my self.

Edited January 4, 20223 yr by PestoPosta