Minecraft Forums

The title pretty much says it all. I'm clueless as to why my game crashes whenever I delete the META-Inf mod and try to install any mods. Help please?

EDIT: Here's the error code:

---- Minecraft Crash Report ----
// Shall we play a game?

Time: 6/22/13 10:07 PM
Description: Exception in server tick loop

java.lang.ArrayIndexOutOfBoundsException: -9
at b.a(SourceFile:317)
at b.a(SourceFile:304)
at jh.b(SourceFile:433)
at gu.b(SourceFile:669)
at gu.a(SourceFile:79)
at bjj.b(SourceFile:73)
at net.minecraft.server.MinecraftServer.r(SourceFile:480)
at net.minecraft.server.MinecraftServer.q(SourceFile:397)
at bjg.q(SourceFile:122)
at net.minecraft.server.MinecraftServer.run(SourceFile:331)
at gp.run(SourceFile:573)


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- System Details --
Details:
Minecraft Version: 1.5.2
Operating System: Windows 7 (amd64) version 6.1
Java Version: 1.7.0_09, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 143694616 bytes (137 MB) / 856948736 bytes (817 MB) up to 954466304 bytes (910 MB)
JVM Flags: 2 total; -Xms512m -Xmx1024m
AABB Pool Size: 1934980 (108358880 bytes; 103 MB) allocated, 1934980 (108358880 bytes; 103 MB) used
Suspicious classes: No suspicious classes found.
IntCache: cache: 0, tcache: 0, allocated: 1, tallocated: 63
Profiler Position: N/A (disabled)
Vec3 Pool Size: 34227 (1916712 bytes; 1 MB) allocated, 34227 (1916712 bytes; 1 MB) used
Player Count: 0 / 8; []
Type: Integrated Server (map_client.txt)
Is Modded: Very likely; Jar signature invalidated

What did you try to do before you deleted the META-INF folder...?
Mods...?
Forge...?

Quote from Smartydaniel2

What did you try to do before you deleted the META-INF folder...?
Mods...?
Forge...?

I didn't do anything before deleting it. For example, I want to use Optifine, but it seems that I can't use any mods without freezing my game. And I've run tests and figured out that without the META-Inf folder it will crash. And then obviously, I can't use mods