Hello! When I install forge (the latest version) and try to start a level it crashes. I have done everything I could think of. I deleted minecraft off my computer completely and then reinstalled it, I tried other versions, and I still can't get it to work. Through googling it i found that many others are having this problem. Please help, I don't know computers that well. This is my crash report. -

 

 

---- Minecraft Crash Report ----

// Don't be sad, have a hug! <3

 

Time: 11/1/13 5:19 PM

Description: Exception in server tick loop

 

java.lang.NullPointerException

at net.minecraft.server.management.ServerConfigurationManager.func_72355_a(ServerConfigurationManager.java:125)

at net.minecraft.server.integrated.IntegratedServerListenThread.func_71747_b(IntegratedServerListenThread.java:97)

at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:691)

at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:587)

at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:129)

at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:484)

at net.minecraft.server.ThreadMinecraftServer.run(SourceFile:583)

 

 

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

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-- System Details --

Details:

Minecraft Version: 1.6.4

Operating System: Mac OS X (x86_64) version 10.9

Java Version: 1.6.0_65, Apple Inc.

Java VM Version: Java HotSpot 64-Bit Server VM (mixed mode), Apple Inc.

Memory: 42932544 bytes (40 MB) / 183136256 bytes (174 MB) up to 1069416448 bytes (1019 MB)

JVM Flags: 1 total; -Xmx1G

AABB Pool Size: 3862 (216272 bytes; 0 MB) allocated, 3862 (216272 bytes; 0 MB) used

Suspicious classes: FML and Forge are installed

IntCache: cache: 0, tcache: 0, allocated: 1, tallocated: 63

FML: MCP v8.11 FML v6.4.38.942 Minecraft Forge 9.11.1.942 3 mods loaded, 3 mods active

mcp{8.09} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available

FML{6.4.38.942} [Forge Mod Loader] (minecraftforge-9.11.1.942.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available

Forge{9.11.1.942} [Minecraft Forge] (minecraftforge-9.11.1.942.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available

Profiler Position: N/A (disabled)

Vec3 Pool Size: 953 (53368 bytes; 0 MB) allocated, 953 (53368 bytes; 0 MB) used

Player Count: 0 / 8; []

Type: Integrated Server (map_client.txt)

Is Modded: Definitely; Client brand changed to 'fml,forge'

interesting this looks like your player is in a dimension that is not known to the game.

Try deleting your player.dat file and connecting again