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My world was running perfectly until I started using redstone. I hooked up 2 stick pistons and went back to get more redstone, and when I came back I tried to place more redstone, but my stack of redstone completely disappeared. I closed the world and tried to reopen it to see if it would fix itself, but Minecraft crashed. I then reopened it and ran the world fine. When I got back in the world, the stack of redstone was still gone, so I just went back to my chest to get more. When I opened the chest, the redstone I "lost" was in there. I figured the game probably lagged out and nothing I did registered and that was what happened, so I tried again. I finished placing all the redstone and it crashed again. That's all I can really say to try and help the problem.

Here's the crash file that it saved: http://www.mediafire...5woi1cyqrjg6cvr

Minecraft has crashed!
----------------------

Minecraft has stopped running because it encountered a problem; Exception in server tick loop

A full error report has been saved to C:\Users\Brandon\AppData\Roaming\.minecraft\crash-reports\crash-2012-11-29_12.25.27-server.txt - Please include a copy of that file (Not this screen!) if you report this crash to anyone; without it, they will not be able to help fix the crash



--- BEGIN ERROR REPORT c817da5d --------
Full report at:
C:\Users\Brandon\AppData\Roaming\.minecraft\crash-reports\crash-2012-11-29_12.25.27-server.txt
Please show that file to Mojang, NOT just this screen!

Generated 11/29/12 12:25 PM

-- System Details --
Details:
Minecraft Version: 1.4.5
Operating System: Windows 7 (x86) version 6.1
Java Version: 1.7.0_09, Oracle Corporation
Java VM Version: Java HotSpot™ Client VM (mixed mode), Oracle Corporation
Memory: 252449880 bytes (240 MB) / 519110656 bytes (495 MB) up to 1037959168 bytes (989 MB)
JVM Flags: 2 total; -Xms512m -Xmx1024m
AABB Pool Size: 355919 (19931464 bytes; 19 MB) allocated, 355919 (19931464 bytes; 19 MB) used
Suspicious classes: No suspicious classes found.
IntCache: cache: 0, tcache: 0, allocated: 3, tallocated: 63
Profiler Position: N/A (disabled)
Vec3 Pool Size: 13199 (739144 bytes; 0 MB) allocated, 13199 (739144 bytes; 0 MB) used
Player Count: 0 / 8; []
Type: Integrated Server (map_client.txt)
Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.

java.lang.NullPointerException
at cf.b(SourceFile:103)
at cf.a(SourceFile:35)
at iv.b(SourceFile:437)
at gm.a(SourceFile:72)
at bdr.b(SourceFile:73)
at net.minecraft.server.MinecraftServer.r(SourceFile:769)
at net.minecraft.server.MinecraftServer.q(SourceFile:686)
at bdo.q(SourceFile:117)
at net.minecraft.server.MinecraftServer.run(SourceFile:620)
at fy.run(SourceFile:856)
--- END ERROR REPORT ff0dff1 ----------




Any feedback would be great.

Bump

Just destroyed all the redstone (probably about 20 redstone) and it took about 4-5 minutes because of the intense lag. As soon as I got the rest of the redstone up, it started running like nothing happened. With that being said, redstone must be bugged. Is there anything I can do to be able to use it without this awful lag?

I just looked on the Mojira bug reporting site and see no reported issues like yours, so I tend to think this is an issue with your system.

Do you run anything like Optifine or Forge?

I have no absolutely no mods. This is the first time I've played Minecraft in about a month, so my minecraft.jar is completely new. I also tried restarting my computer but that didn't help at all.

What are the specs of your PC? What OS and Java do you have also? This sounds like a PC that is struggling to run minecraft to me. What you describe about items disappearing from your inventory and showing up back in chests is typical with lag where your client thinks you have the items, but the server never acknowledged it and then corrects your client that it really doesn't have them later.

Specs: http://www.mediafire.com/view/?g2k77qzyix7121a

It does kinda struggle to play Minecraft. It lags a bit when there's a good bit of stuff going on, but I've never had a problem like this. Usually the mechanics of the game runs fine, but it has a slight lag.

Yeah seems like those specs should be able to run minecraft fine. Make sure you have the 64 bit version of Java installed. If you have more than one version installed it could be that java is using the wrong one.

Thanks a lot! I had the 32 bit java installed so I uninstalled it and downloaded 64 bit. So far there haven't been any problems with placing redstone and everything is as normal as always. I still haven't turned on the redstone yet because I'm still tinkering with it, but so far it's fine. I can't believe it was something as simple as that.

Scratch that. Crashed again with the same error while I was killing slimes. Damnit. It's just that one world though. I dunno what to do.

Okay, try doing a clean install of minecraft by renaming the .minecraft install folder to something like .minecraft_old, then use the launcher to redownload the game files, move your worlds over to the new install and see if that helped at all.

I started downloading a texture pack and when I went to use it every time I went to check my inventory the screen covered in dirt and it crashed. here is the the crash report:

---- Minecraft Crash Report ----
// Don't be sad. I'll do better next time, I promise!

Time: 3/8/13 1:04 PM
Description: Exception in server tick loop

java.lang.OutOfMemoryError: Java heap space
at java.util.HashMap.addEntry(HashMap.java:753)
at java.util.HashMap.put(HashMap.java:385)
at bq.a(SourceFile:35)
at by.a(SourceFile:38)
at cd.b(SourceFile:96)
at bq.a(SourceFile:34)
at cd.b(SourceFile:96)
at bq.a(SourceFile:34)
at cd.b(SourceFile:96)
at ca.a(SourceFile:75)
at aam.a(SourceFile:54)
at im.f(SourceFile:125)
at im.c(SourceFile:76)
at net.minecraft.server.MinecraftServer.e(SourceFile:506)
at bdz.a(SourceFile:83)
at bdz.c(SourceFile:99)
at net.minecraft.server.MinecraftServer.run(SourceFile:588)
at fy.run(SourceFile:849)


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

-- System Details --
Details:
Minecraft Version: 1.4.7
Operating System: Mac OS X (x86_64) version 10.8.2
Java Version: 1.6.0_41, Apple Inc.
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Apple Inc.
Memory: 213696416 bytes (203 MB) / 1065025536 bytes (1015 MB) up to 1065025536 bytes (1015 MB)
JVM Flags: 3 total; -Xbootclasspath/a:/System/Library/PrivateFrameworks/JavaApplicationLauncher.framework/Resources/LauncherSupport.jar -Xms512M -Xmx1024M
AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 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: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
Player Count: 0 / 8; []
Type: Integrated Server (map_client.txt)
Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.