Minecraft Forums

Every time i launch minecraft it works fine until i click play on the selected world. then it crashes here is the crash report:

---- Minecraft Crash Report ----
// Quite honestly, I wouldn't worry myself about that.
Time: 9/6/12 4:51 PM
Description: Unexpected error
java.lang.SecurityException: SHA1 digest error for aux.class
at sun.security.util.ManifestEntryVerifier.verify(Unknown Source)
at java.util.jar.JarVerifier.processEntry(Unknown Source)
at java.util.jar.JarVerifier.update(Unknown Source)
at java.util.jar.JarVerifier$VerifierStream.read(Unknown Source)
at sun.misc.Resource.getBytes(Unknown Source)
at java.net.URLClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.access$100(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at net.minecraft.client.Minecraft.a(SourceFile:1354)
at apu.a(SourceFile:196)
at aqt.a(SourceFile:64)
at apu.a(SourceFile:284)
at aqt.d(SourceFile:112)
at aqt.m(SourceFile:100)
at net.minecraft.client.Minecraft.l(SourceFile:1100)
at net.minecraft.client.Minecraft.J(SourceFile:606)
at net.minecraft.client.Minecraft.run(SourceFile:558)
at java.lang.Thread.run(Unknown Source)
Relevant Details:
- Minecraft Version: 12w36a
- Operating System: Windows 7 (amd64) version 6.1
- Java Version: 1.7.0_02, Oracle Corporation
- Java VM Version: Java HotSpot™ 64-Bit Server VM (mixed mode), Oracle Corporation
- Memory: 342183872 bytes (326 MB) / 514523136 bytes (490 MB) up to 954466304 bytes (910 MB)
- JVM Flags: 2 total; -Xms512m -Xmx1024m
- LWJGL: 2.4.2
- OpenGL: GeForce GTS 250/PCIe/SSE2 GL version 3.3.0, NVIDIA Corporation
- Is Modded: Probably not
- Type: Client
- Texture Pack: Default
- Profiler Position: N/A (disabled)

Quote from Dansore

Every time i launch minecraft it works fine until i click play on the selected world. then it crashes here is the crash report:

-snip-

Does this happen on all of your worlds? Or just a specific one?

I also noticed that you're running snapshot 12w36a, the most recent one released.

Here's a few of my guesses as to what went wrong, in order of most likely to least (in my opinion).

1. Something in your world is conflicting with something in snapshot 12w36a, Minecraft can be a big pain sometimes, and isn't one of the most stable games, the conflict could be anything, and could be the most random thing.

2. Your world is corrupt, although I'm unsure as you did not specify whether it was clicking on a specific world, or any of your worlds.

3. Your minecraft.jar is corrupt or something is out of place within the .jar, have you tried modding the snapshot? Although I've never used snapshots, I highly doubt they can be modded unless someone has updated their mod that fast. (Remember this reason is highly unlikely)

What I recommend you do, is first try playing on the most current version of Minecraft, 1.3.2 I believe? See if the problem consists there. If it does, your world may be corrupted, and you can go here to try and get help about fixing it.

If your problem still continues to happen, we can work it out from there.

Good luck and I hope this helps.

Quote from lilrocker284

Does this happen on all of your worlds? Or just a specific one?

I also noticed that you're running snapshot 12w36a, the most recent one released.

Here's a few of my guesses as to what went wrong, in order of most likely to least (in my opinion).

1. Something in your world is conflicting with something in snapshot 12w36a, Minecraft can be a big pain sometimes, and isn't one of the most stable games, the conflict could be anything, and could be the most random thing.

2. Your world is corrupt, although I'm unsure as you did not specify whether it was clicking on a specific world, or any of your worlds.

3. Your minecraft.jar is corrupt or something is out of place within the .jar, have you tried modding the snapshot? Although I've never used snapshots, I highly doubt they can be modded unless someone has updated their mod that fast. (Remember this reason is highly unlikely)

What I recommend you do, is first try playing on the most current version of Minecraft, 1.3.2 I believe? See if the problem consists there. If it does, your world may be corrupted, and you can go here to try and get help about fixing it.

If your problem still continues to happen, we can work it out from there.

Good luck and I hope this helps.

All of them