Pixelmon and OreSpawn Conflict in Forge

[Cobracon]

Hello,

 

This is my first post and I apologize in advance if I have posted the question in the wrong place, or overlooked something obvious.  I am a lowly Dad trying to help a kid   I am not experienced in Minecraft, so sorry for my ignorance. 

 

I have installed Minecraft Launcher 1.5.3 on Ubuntu 12.04 LTS.  Then I installed Forge and was using Release 1.7.10-Forge 10.13.0.1180 with Pixelmon-1.7.10-3.2.5-universal and during this time everything worked fine.  Then I downloaded and tried to install orespawn164v19 which required forge-1.6.4-9.11.1.965-installer.  I successfully installed the forge-1.6.4-9.11.1.965-installer. But with both mods in the mods folder upon loading the program crashed. 

I found that if I take run orespawn by itself using 1.6.4.... it works fine.  If I use pixelmon using 1.7.10.... it works fine.  But both together crash.  As orespawn came before 1.7.10, and I can't use pixelmon without 1.7.10 so I can't use a older version of 1.6.4.... with pixelmon in the folder.

Can I successfully just create a new folder, inside the mods folder, and swap in and out whichever mod I am not using at the time, or will I loose data?

How can these both co-exist in a practical way?

The FAQ told me to include the log.  I hope I attached the correct one.  Thanks in advance.

 

[19:44:17] [main/INFO]: Setting user: p3rcy_j4ck50n

[19:44:19] [Client thread/INFO]: LWJGL Version: 2.9.1

[19:44:19] [Client thread/ERROR]: Couldn't initialize twitch stream

[19:44:26] [Client thread/INFO]: Reloading ResourceManager: Default, FMLFileResourcePack:Forge Mod Loader, FMLFileResourcePack:Minecraft Forge, FMLFileResourcePack:OreSpawn, FMLFileResourcePack:Pixelmon

 

 

 

 

[LexManos]

You cant run mods on versions of minecraft they were not designed for.

1.6.4 != 1.7.10

They can not work together.

 

Aside from that, the launcher has a 'Game Folder' option for a reason use it.