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My minecraft forge 1.12.2 doesn't open

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Posted August 11, 20205 yr

12:31:28.462

Preparing to launch minecraft client for 1.12.2-forge-14.23.5.2854

12:31:29.296

Checking installations.

12:31:29.297

Minecraft client 1.12.2-forge-14.23.5.2854 requires 10180113 bytes to download.

12:31:29.298

Starting!

12:31:33.496

Downloaded https://launcher.mojang.com/v1/objects/0f275bc1547d01fa5f56ba34bdc87d981ee12daf/client.jar to /home/user/.minecraft/versions/1.12.2-forge-14.23.5.2854/1.12.2-forge-14.23.5.2854.jar

12:31:33.496

TIMER: Downloads took 4 seconds.

12:31:33.514

Version does not support log configuration, will assume one plaintext entry per line

12:31:33.773

Exception in thread "main" java.lang.ClassCastException: class jdk.internal.loader.ClassLoaders$AppClassLoader cannot be cast to class java.net.URLClassLoader (jdk.internal.loader.ClassLoaders$AppClassLoader and java.net.URLClassLoader are in module java.base of loader 'bootstrap')

12:31:33.774

at net.minecraft.launchwrapper.Launch.<init>(Launch.java:34)

12:31:33.774

at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

12:31:33.801

Process crashed with exit code 1

August 11, 20205 yr

1.12 is no longer supported on this forum.

Update to a modern version of Minecraft to receive support.

5 yr5 yr DaemonUmbra locked this topic

This topic is now closed to further replies.

https://forums.minecraftforge.net/topic/89687-my-minecraft-forge-1122-doesnt-open/

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My minecraft forge 1.12.2 doesn't open

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Posts

Bad pathfinding for big mobs (1.21.1)

(((SOLVED))) Loading into certain worlds stuck on "Reading world data" then stops responding.

How do I remove 3d headlayer on NPC's skin in CustomNpc? (1.16.5)

How do I remove 3d headlayer on NPC's skin in CustomNpc? (1.16.5)

[1.16.1]Render enchanted glint to item

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