Etho Pack adding mods

[Destabalized Redstone]

I have been playing the custom Etho's LP Modpack and I wanted to add some mods. I tried adding the MCHeli mod but this causes forge to say that I have mod sources that are duplicates within my system, Mod Id : File name, mcheli : mcheli, mecheli : minecraft. I was wondering if there is a way to fix this. Thanks!

P.S. I cant provide a log because it's bigger than 512kb on pastebin.

 

[b0bst3r]

http://paste.ubuntu.com/ not limited by size

 

[Destabalized Redstone]

http://paste.ubuntu.com/10812082/

 

[b0bst3r]

Could do with the crash log, that lists the mods better.

 

[jordsta95]

The issue is mcheli. (well no duh Jordan...)
The FTB launcher has issues with MCHeli, if you really want to add it, I suggest waiting until FTB Trident is released (it was announced recently, IIRC the date it will be released is the 17th) and look at how MCheli is installed there.
The way the mod works is awkward, and a lot of people have had issues.
Though if you MUST play it now, you can use the MultiMC launcher, and install MCheli how it says on the forum for the mod, and it will run just fine.