Possible conflicts with mods, need help working it out

[Spanners]

Hi

I'm trying to create my own mod pack for a server I run. It is similar in content to Big Dig, but I've taken a few mods away and am adding some.

It is these extra mods I'm having trouble with. I've already added a couple and it works fine with them but am having trouble with Biomes O'Plenty and mo'creatures

First, Biomes O'Plenty. It crashes the game on launch and to my eyes the error report is not terribly informative aside from some sort of conflict with minefactory reloaded. I've put a copy of it here: http://pastebin.com/C0qbquCb .

And the error dump for Mo'Creatures is http://pastebin.com/vCgw286Y This crash occurs when a fresh map is made, and seems to be some conflict with the ICBM mod.

Thanks you for any help you can give

[Nightreaver]

try start your pack in minecraft client first, as this is more sensible to ID conflicts and may show you whats wrong

also have a look in the forge log, as this may display conflicts and errors too

[Spanners]

I'm not sure what you mean exactly. Build the pack up from Vanilla minecraft?

[Nightreaver]

put the mods and configs in an vanilla->forge minecraft client

if its working, start using this with your server