Cant seem to get custom mod pack to work.

[enforcer07]

I have spent the last 2 days trying to fix this, the first day no error reports, nothing. It just didnt load any mods, it was vanilla. Second day, now the game wont run, it says Failed to start launcher, errors reported in log. But it auto closes minecraft and i dont see the error screen, and yes Meta inf was deleted which it said would be the problem for that error.

With little information can anyone help?

[Sargcj]

May not be the best advice but delete everything and start over, also closely follow a guide, like this one: http://forums.technicpack.net/threads/luke’s-hopefully-comprehensive-modpack-making-guide.44197/

Make sure mods and files are where they are supposed to be(coremods, mods, modpack.jar), they are for the correct version of MC you're using, and that there are no ID conflicts.

First thing first, get forge working (either in the minecraft.jar, or preferably via modpack.jar) and let it load vanilla mc with forge. From there on you will have a crash report text file and a forge mod loader log, both are essential in finding what is going wrong whether it is a conflict ID or some other error.

Oh and lastly organize yourself and do it mod by mod checking for errors and issues, is it time consuming? yes, but it works. The first few tries I did I rushed it and it didn't work, got fed up and quit. A day or so later I started from scratch got myself organized and managed to get it to work via trial and error. I also use multiMC to build the pack, then when I finished it I deleted the modified minecraft.jar and put forge and optifine in the modpack.jar to make it work via technic launcher. Hope that helps.

Edit: Another tip, if you still have errors, post the crash report and/or the forge log for the incident, without those you usually won't get much or any help.

Edit2: I want to bring attention to the modpack.jar vs minecraft.jar thing, If you are not going to share it with friends or anybody, then you can use minecraft.jar, but if you SHARE minecraft.jar you are committing piracy. That is why I mention modpack.jar, and how I convert from multimc to modpack.jar when finishing up. Hopefully that will clarify things, just in case I confused anyone.