Known Conflicts between other plugins

YouCompleteMe and SnipMate:

YouCompleteMe uses tab for completion, and so does SnipMate. If you want to use both, you need to change SnipMate-s trigger key using:

imap <C-J> <esc>a<Plug>snipMateNextOrTrigger                                                                                                                
smap <C-J> <Plug>snipMateNextOrTrigger 

Ref: https://github.com/Valloric/YouCompleteMe/issues/47#issuecomment-20529309