Mekanism modpack Help

[zrath6]

I've been putting together this mod pack http://www.technicpack.net/modpack/details/test-11114.307732 and everything use just fine until i added Mekanism http://aidancbrady.com/mekanism/

 

Now It crashes before minecraft even comes up 

[plowmanplow]

• Your Buildcraft is outdated (4.1.2 vs. 4.2.2). Update this. Mekanism includes the BuildCraft API and since his included version is newer than the one in your version of BC, Crashy McCrashter.
• You have an extraneous file "DynamicLights_1.6.4.zip". This file looks to be the installation download from the mod author. Remove this.
• You have some very old versions of your chosen mods. You say you are trying to add Mekanism but are not using the most recent version (by a fair margin).
• You have existing ID conflicts between: Atomic Science and Glenn's Gasses, Glenn's Gasses and ICBM (just because a pack starts doesn't mean there are no conflicts... one must check the logs)

Once you address these issues there will be some ID conflicts between Mekanism and your existing mods, but I'm sure you are up to resolving those.

Edited April 8, 2014 by plowmanplow

[zrath6]

how can you tell what the problems are, or rather how can i figure this out myself so i dont have to bother you everytime somethings goes wrong.

also Thank you very much.

Edited April 15, 2014 by zrath6

[plowmanplow]

• Only get your mods from the mod author's preferred distribution channels. This will be either a MinecraftForum thread, a Curse page, the author's build server or the author's website for 99.9% of the mods. Don't be copying mods from other packs as you never know what they might have done with them and you won't know if there is a newer version. You should have bookmarks or similar for every single mod in your pack so you can easily check up on updates or bugfixes/patches. This has a secondary, but important, benefit that you will have direct access to the correct installation procedure for the mods.
• I highly recommend using something like my BareBonesPack ( http://www.technicpack.net/modpack/details/barebonespack.271497 ) to have a clean environment for building and maintaining your pack. This is a bare Forge install with no other mods. Simply copy in your mods/configs and any extra required folders like Flan or Chocolate (leave out your bin folder).
• In order to find and resolve ID conflicts one must pay close attention to the FMLClient log. Look for the string "CONFLICT" (sometimes it is there and fine, but often not). However, the only way to get reliable results from this is to add your mods in slowly by groups (for mods like ProjRed or Galacticraft that have a number of mod files each) so that you can deal with small changes. Dropping a dozen mods in and starting the pack up can have so many problems and conflicts that the results from the logs are ambiguous or misleading.