HMPerson1

GLSL Shaders OF goes in the jar... You're putting it into the mods folder.

In Event Of File Server Outage

There's no sure-fire way of determining this, as not all mods use the same config format for storing block ids. Heck, mods could randomly generate block ids on the fly each time it's loaded, ignoring its config entirely. However, if, and only if, they use the default Forge config style, one could write a tool to detect id conflicts.

Did you delete META-INF?

The common folder has been moved inside the minecraft folder.

Change the directory from which you executed minecraft.jar Forge will load from ./

Don't use [hide]...error log... Use spoilers. [spoiler]...error log...[/spoiler] This will be your only warning.

How did you install it and how are you running it (e.g. startup script)?

Logs?

Looks like a problem with your ArsMagica config file.

Latest is 6.4.2.448.

Try with the latest Forge without mods. If that works, it means it's a problem with one of your other mods.

Instructions are on the wiki.

The logs we're looking for are at .minecraft/ForgeModLoader-client-#.log. Btw, thanks for the well written report. It's quite hard to come by one these days.

Copy these: fml_at.cfg fml_marker.cfg fmlversion.properties forge_at.cfg forge_logo.png mcp.png mcpmod.info

That method works perfectly fine for me. Instead of deleting the mods or coremods folders, delete all of the ForgeModLoader-server-#.log files. If it is recreated when you launch minecraftforge-universal.jar (give it a minute or two), then it's working properly.

Workaround: Manually copy *.cfg files to the bin directory.

2012-12-16 14:32:15 [sEVERE] [ForgeModLoader] There were errors during initial FML setup. Some files failed to download or were otherwise corrupted. You will need to manually obtain the following files from these download links and ensure your lib directory is clean. 2012-12-16 14:32:15 [sEVERE] [ForgeModLoader] *** Download http://files.minecraftforge.net/fmllibs/argo-2.25.jar 2012-12-16 14:32:15 [sEVERE] [ForgeModLoader] *** Download http://files.minecraftforge.net/fmllibs/guava-12.0.1.jar 2012-12-16 14:32:15 [sEVERE] [ForgeModLoader] *** Download http://files.minecraftforge.net/fmllibs/asm-all-4.0.jar 2012-12-16 14:32:15 [sEVERE] [ForgeModLoader] *** Download http://files.minecraftforge.net/fmllibs/bcprov-jdk15on-147.jar Do what the log tells you to do.

java.lang.RuntimeException: A download error occured Look at the second bullet point.

Read the O-EAQ.

Railcraft is suspiciously absent from the mods list... 2012-12-16 19:59:54 [FINE] [ForgeModLoader] Mod sorting data: 2012-12-16 19:59:54 [FINE] [ForgeModLoader] BasicComponents(Basic Components:1.2.0): BasicComponents_v1.2.0.303.jar () 2012-12-16 19:59:54 [FINE] [ForgeModLoader] AssemblyLine(Assembly Line:0.1.7): AssemblyLine_v0.1.7.25.jar (required-after:BasicComponents) 2012-12-16 19:59:54 [FINE] [ForgeModLoader] EnderStorage(EnderStorage:1.3.0.4): EnderStorage 1.3.0.4.jar () 2012-12-16 19:59:54 [FINE] [ForgeModLoader] ICBM(ICBM:0.7.2): ICBM_v0.7.2.88.jar (after:BasicComponents;after:AtomicScience) 2012-12-16 19:59:54 [FINE] [ForgeModLoader] ModularForceFieldSystem(Modular ForceField System V2:2.2.8.1.17c): ModularForceFieldSystemV2.2.8.1.17c.zip () 2012-12-16 19:59:54 [FINE] [ForgeModLoader] IronChest(Iron Chest:4.4.0.194): ironchest-universal-4.4.0.194.zip (required-after:Forge@[6.0,))

Are you sure you have all the mods installed on the server? And we'd prefer if you'd give the server logs as well.

No mods? Really? 2012-12-16 20:29:55 [FINE] [ForgeModLoader] Found a minecraft related file at C:\Users\Sin\AppData\Roaming\.minecraft\coremods\IDResolver_1.4.5_COREMOD_Update-0.jar, examining for mod candidates 2012-12-16 20:29:56 [FINE] [ForgeModLoader] Mod sorting data: 2012-12-16 20:29:56 [FINE] [ForgeModLoader] mod_TooManyItems(mod_TooManyItems:Not available): minecraft.jar () 2012-12-16 20:29:56 [FINE] [ForgeModLoader] mod_GuiAPI(mod_GuiAPI:Not available): minecraft.jar () 2012-12-16 20:29:56 [FINE] [ForgeModLoader] mod_IDResolver(mod_IDResolver:Not available): IDResolver_1.4.5_COREMOD_Update-0.jar (after:*) You still have TMI and GuiAPI in your jar.

Forge will automatically download MCP for you. Don't extract Forge into MCP.

Copy the configs folder from the server to your client.