When Using Buildcraft (7.1) With these Other Mods Minecraft Crashes on World Gen:
Applied Energistics 2 core, Applied Energistics 2, code chicken core, NEI, Open mods core, CoFH core, Baubles, Thermal Expansion, Thermal Foundation, Thermal Dynamics, Big Reactors, Biomes O' plenty, Thaumcraft, Botania, Twilight forest, Chisel 2, Computer Craft, Ender IO, Extra Utilities, Forestry For Minecraft, Journey Map Mantle, Minefactory Reloaded, Walia, Tinkers' Construct, Open Blocks, Veinminer
Crash Report:
Crash Log Taken From Minecraft Launcher:
---- Minecraft Crash Report ----
// Don't do that.
Time: 10/25/15 3:16 PM
Description: Exception in server tick loop
java.lang.NoSuchMethodError: buildcraft.api.core.JavaTools.getAllFields(Ljava/lang/Class;)Ljava/util/List;
at buildcraft.api.mj.MjAPI.getMjBatteryField(MjAPI.java:196)
at buildcraft.api.mj.MjAPI.getMjBattery(MjAPI.java:85)
at buildcraft.api.mj.MjAPI.getMjBattery(MjAPI.java:55)
at buildcraft.api.mj.MjAPI.getMjBattery(MjAPI.java:46)
at buildcraft.api.power.PowerHandler.(PowerHandler.java:159)
at buildcraft.api.power.PowerHandler.(PowerHandler.java:145)
at crazypants.enderio.power.PowerHandlerUtil.createHandler(PowerHandlerUtil.java:62)
at crazypants.enderio.machine.AbstractMachineEntity.(AbstractMachineEntity.java:86)
at crazypants.enderio.machine.AbstractMachineEntity.(AbstractMachineEntity.java:185)
at crazypants.enderio.machine.AbstractPoweredTaskEntity.(AbstractPoweredTaskEntity.java:26)
at crazypants.enderio.machine.alloy.TileAlloySmelter.(TileAlloySmelter.java:35)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at java.lang.Class.newInstance(Unknown Source)
at net.minecraft.tileentity.TileEntity.func_145827_c(TileEntity.java:104)
at net.minecraft.world.chunk.storage.AnvilChunkLoader.loadEntities(AnvilChunkLoader.java:496)
at net.minecraftforge.common.chunkio.ChunkIOProvider.callStage2(ChunkIOProvider.java:41)
at net.minecraftforge.common.chunkio.ChunkIOProvider.callStage2(ChunkIOProvider.java:12)
at net.minecraftforge.common.util.AsynchronousExecutor.skipQueue(AsynchronousExecutor.java:344)
at net.minecraftforge.common.util.AsynchronousExecutor.getSkipQueue(AsynchronousExecutor.java:302)
at net.minecraftforge.common.chunkio.ChunkIOExecutor.syncChunkLoad(ChunkIOExecutor.java:12)
at net.minecraft.world.gen.ChunkProviderServer.loadChunk(ChunkProviderServer.java:126)
at net.minecraft.world.gen.ChunkProviderServer.func_73158_c(ChunkProviderServer.java:101)
at net.minecraft.server.MinecraftServer.func_71222_d(MinecraftServer.java:265)
at net.minecraft.server.integrated.IntegratedServer.func_71247_a(IntegratedServer.java:78)
at net.minecraft.server.integrated.IntegratedServer.func_71197_b(IntegratedServer.java:92)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:387)
at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:685)

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

-- System Details --
Details:
Minecraft Version: 1.7.10
Operating System: Windows 10 (amd64) version 10.0
Java Version: 1.8.0_65, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 502003848 bytes (478 MB) / 1318060032 bytes (1257 MB) up to 2863661056 bytes (2731 MB)
JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx3G
AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
IntCache: cache: 21, tcache: 0, allocated: 12, tallocated: 97
FML: MCP v9.05 FML v7.10.99.99 Minecraft Forge 10.13.4.1517 59 mods loaded, 59 mods active
States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored
UCHIJAA mcp{9.05} Minecraft Coder Pack
UCHIJAA FML{7.10.99.99} Forge Mod Loader
UCHIJAA Forge{10.13.4.1517} Minecraft Forge
UCHIJAA appliedenergistics2-core{rv2-stable-10} AppliedEnergistics2 Core
UCHIJAA CodeChickenCore{1.0.7.47} CodeChicken Core
UCHIJAA NotEnoughItems{1.0.5.118} Not Enough Items
UCHIJAA VeinMiner_coremod{0.21.2_build-43} Core mod
UCHIJAA OpenModsCore{0.8} OpenModsCore
UCHIJAA {000} CoFH ASM
UCHIJAA appliedenergistics2{rv2-stable-10} Applied Energistics 2
UCHIJAA CoFHCore{1.7.10R3.0.3} CoFH Core
UCHIJAA Baubles{1.0.1.10} Baubles
UCHIJAA ThermalFoundation{1.7.10R1.2.0} Thermal Foundation
UCHIJAA ThermalExpansion{1.7.10R4.0.0} Thermal Expansion
UCHIJAA BigReactors{0.4.3A} Big Reactors
UCHIJAA BiomesOPlenty{2.1.0} Biomes O' Plenty
UCHIJAA Thaumcraft{4.2.3.5} Thaumcraft
UCHIJAA Botania{r1.7-226} [Botania](Botania r1.7-226.jar)
UCHIJAA BuildCraft|Core{7.1.12} BuildCraft
UCHIJAA BuildCraft|Builders{7.1.12} BC Builders
UCHIJAA BuildCraft|Transport{7.1.12} BC Transport
UCHIJAA BuildCraft|Energy{7.1.12} BC Energy
UCHIJAA BuildCraft|Silicon{7.1.12} BC Silicon
UCHIJAA BuildCraft|Robotics{7.1.12} BC Robotics
UCHIJAA BuildCraft|Factory{7.1.12} BC Factory
UCHIJAA TwilightForest{2.3.7} The Twilight Forest
UCHIJAA chisel{2.5.1.44} Chisel 2
UCHIJAA ComputerCraft{1.74} ComputerCraft
UCHIJAA EnderIO{1.7.10-2.0.5.214} Ender IO
UCHIJAA ExtraUtilities{1.2.11} Extra Utilities
UCHIJAA Forestry{4.0.10.39} Forestry for Minecraft
UCHIJAA journeymap{@Jmversion@} JourneyMap
UCHIJAA Mantle{1.7.10-0.3.2.jenkins188} Mantle
UCHIJAA MineFactoryReloaded{1.7.10R2.8.0} MineFactory Reloaded
UCHIJAA MineFactoryReloaded|CompatAppliedEnergistics{1.7.10R2.8.0} MFR Compat: Applied Energistics
UCHIJAA MineFactoryReloaded|CompatAtum{1.7.10R2.8.0} MFR Compat: Atum
UCHIJAA MineFactoryReloaded|CompatBackTools{1.7.10R2.8.0} MFR Compat: BackTools
UCHIJAA MineFactoryReloaded|CompatBuildCraft{1.7.10R2.8.0} MFR Compat: BuildCraft
UCHIJAA MineFactoryReloaded|CompatChococraft{1.7.10R2.8.0} MFR Compat: Chococraft
UCHIJAA MineFactoryReloaded|CompatExtraBiomes{1.7.10R2.8.0} MFR Compat: ExtraBiomes
UCHIJAA MineFactoryReloaded|CompatForestry{1.7.10R2.8.0} MFR Compat: Forestry
UCHIJAA MineFactoryReloaded|CompatForgeMicroblock{1.7.10R2.8.0} MFR Compat: ForgeMicroblock
UCHIJAA MineFactoryReloaded|CompatIC2{1.7.10R2.8.0} MFR Compat: IC2
UCHIJAA MineFactoryReloaded|CompatMystcraft{1.7.10R2.8.0} MFR Compat: Mystcraft
UCHIJAA MineFactoryReloaded|CompatProjRed{1.7.10R2.8.0} MFR Compat ProjectRed
UCHIJAA MineFactoryReloaded|CompatRailcraft{1.7.10R2.8.0} MFR Compat: Railcraft
UCHIJAA MineFactoryReloaded|CompatSufficientBiomes{1.7.10R2.8.0} MFR Compat: Sufficient Biomes
UCHIJAA MineFactoryReloaded|CompatThaumcraft{1.7.10R2.8.0} MFR Compat: Thaumcraft
UCHIJAA MineFactoryReloaded|CompatThermalExpansion{1.7.10R2.8.0} MFR Compat: Thermal Expansion
UCHIJAA Waila{1.5.10} Waila
UCHIJAA TConstruct{1.7.10-1.8.7.build979} Tinkers' Construct
UCHIJAA MineFactoryReloaded|CompatTConstruct{1.7.10R2.8.0} MFR Compat: Tinkers' Construct
UCHIJAA MineFactoryReloaded|CompatTwilightForest{1.7.10R2.8.0} MFR Compat: TwilightForest
UCHIJAA MineFactoryReloaded|CompatVanilla{1.7.10R2.8.0} MFR Compat: Vanilla
UCHIJAA OpenMods{0.8} OpenMods
UCHIJAA OpenBlocks{1.4.4} OpenBlocks
UCHIJAA ThermalDynamics{1.7.10R1.1.0} Thermal Dynamics
UCHIJAA VeinMiner{0.21.2} Vein Miner
UCHIJAA VeinMinerModSupport{0.21.2} Mod Support
GL info: ERROR RuntimeException: No OpenGL context found in the current thread.
OpenModsLib class transformers: [stencil_patches:FINISHED],[movement_callback:FINISHED],[map_gen_fix:FINISHED],[gl_capabilities_hook:FINISHED],[player_render_hook:FINISHED]
Class transformer null safety: all safe
AE2 Version: stable rv2-stable-10 for Forge 10.13.2.1291
CoFHCore: -[1.7.10]3.0.3-303
ThermalFoundation: -[1.7.10]1.2.0-102
ThermalExpansion: -[1.7.10]4.0.0-176
Mantle Environment: Environment healthy.
MineFactoryReloaded: -[1.7.10]2.8.0-104
TConstruct Environment: Environment healthy.
ThermalDynamics: -[1.7.10]1.1.0-161
Stencil buffer state: Function set: GL30, pool: forge, bits: 8
AE2 Integration: IC2:OFF, RotaryCraft:OFF, RC:OFF, BC:ON, RF:ON, RFItem:ON, MFR:ON, DSU:ON, FZ:OFF, FMP:OFF, RB:OFF, CLApi:OFF, Waila:ON, InvTweaks:OFF, NEI:ON, CraftGuide:OFF, Mekanism:OFF, ImmibisMicroblocks:OFF, BetterStorage:OFF
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: Definitely; Client brand changed to 'fml,forge'

yeah it's looking for MJ so definatly one of your mods is seriously outdated or shiping a realy old api

So i went through every Mod and re-installed it, but all on a new world.The New World loaded fine, with no apparent issues. But the first world, once again, crashed on the loading screen. I've come to the conclusion that this world is somehow faulty or there is some kind of conflict between mods that i haven't found. Thanks for the help.

@CrossAvenger this shouldn't be an world issue but a mod issue, my guess is that it will crash again once you start placing machines, as the mod probably isn't accessing the api till a block is in the world

Yes you're right. it seems i inadvertently removed the problem from the world by destroying all of the Ender IO pipes. You're correct, because when i tried to place an Ender IO pipe the world crashed. But i simply removed the mod and now everything seems to work fine. Thank goodness i made world backups though. Thanks again for the help.

@CrossAvenger update ender io to the latest version then, if it's still crashes then report it there, they shouldn't be shiping an that old api