Installed Forge(Universal 1.4.7-6.6.2.534), Buildcraft(3.4.3), Industrial Craft 2(1.112.170), Railcraft(6.17.0.0), BCIC2 Crossover (2.0), NEI(1.4.7.0) & Codechickencore(0.7.3).
Played game for about a day with no problems. Game got choppy, opened inventory & noticed that NEI interface was gone, exited inventory & game crashed. Opened Crash-Reports & had 1 entry as follows:
---- Minecraft Crash Report ----
// Don't be sad. I'll do better next time, I promise!
Time: 3/7/13 12:28 PM
Description: Exception in server tick loop
java.lang.NullPointerException
at cf.b(MemoryConnection.java:160)
at cf.a(MemoryConnection.java:48)
at iv.b(NetServerHandler.java:690)
at gm.a(ServerConfigurationManager.java:117)
at bec.b(IntegratedServerListenThread.java:96)
at net.minecraft.server.MinecraftServer.r(MinecraftServer.java:703)
at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:599)
at bdz.q(IntegratedServer.java:123)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:497)
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: Windows 7 (amd64) version 6.1
Java Version: 1.6.0_30, Sun Microsystems Inc.
Java VM Version: Java HotSpot 64-Bit Server VM (mixed mode), Sun Microsystems Inc.
Memory: 171542632 bytes (163 MB) / 804257792 bytes (767 MB) up to 954466304 bytes (910 MB)
JVM Flags: 1 total; -Xmx1024m
AABB Pool Size: 720607 (40353992 bytes; 38 MB) allocated, 720607 (40353992 bytes; 38 MB) used
Suspicious classes: FML and Forge are installed
IntCache: cache: 0, tcache: 0, allocated: 1, tallocated: 63
FML: MCP v7.26a FML v4.7.35.556 Minecraft Forge 6.6.2.534 14 mods loaded, 14 mods active
mcp [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available->Available->Available->Available->Available->Available
FML [Forge Mod Loader] (coremods) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available->Available->Available->Available->Available->Available
Forge [Minecraft Forge] (coremods) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available->Available->Available->Available->Available->Available
CodeChickenCore [CodeChicken Core] (coremods) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available->Available->Available->Available->Available->Available
NotEnoughItems [Not Enough Items] (coremods) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available->Available->Available->Available->Available->Available
BuildCraft|Core [buildCraft] (buildcraft-A-3.4.3.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available->Available->Available->Available->Available->Available
BuildCraft|Energy [bC Energy] (buildcraft-A-3.4.3.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available->Available->Available->Available->Available->Available
BuildCraft|Factory [bC Factory] (buildcraft-A-3.4.3.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available->Available->Available->Available->Available->Available
IC2 [industrialCraft 2] (industrialcraft-2_1.112.170-lf.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available->Available->Available->Available->Available->Available
BCIC2Crossover [bC-IC2 Crossover Mod] (BCIC2crossover 2.0.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available->Available->Available->Available->Available->Available
BuildCraft|Builders [bC Builders] (buildcraft-A-3.4.3.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available->Available->Available->Available->Available->Available
BuildCraft|Transport [bC Transport] (buildcraft-A-3.4.3.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available->Available->Available->Available->Available->Available
BuildCraft|Silicon [bC Silicon] (buildcraft-A-3.4.3.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available->Available->Available->Available->Available->Available
Railcraft [Railcraft] (Railcraft_1.4.7-6.17.0.0.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available->Available->Available->Available->Available->Available
Profiler Position: N/A (disabled)
Vec3 Pool Size: 88558 (4959248 bytes; 4 MB) allocated, 88558 (4959248 bytes; 4 MB) used
Player Count: 0 / 8; []
Type: Integrated Server (map_client.txt)
Is Modded: Definitely; Client brand changed to 'forge,fml'
Had exact same thing happen to me with previous install with the same mods except that I had TMI installed instead of NEI. Never looked @ the crash report from previous install I just uninstalled, deleted all MC files/folders, reinstalled with fresh MC & re-added mods. Anh help?