Not launching some roms

[killcam1982]

Hello. Can someone help me. I cant launch certain platforms.

Sega Naomi, Atomiswave, N64, and Dreamcast. Wont launch.

Snes, genesis, nes, launch fine.

I can open retroarch. And all play fine. By right clicking and "open retroarch"

[sundogak]

You don't say which Retroarch core you are using that are not working. Make sure you have the core(s) selected in the Tools, Manage, Emulators, Retroarch, Associated Platforms section.  

[killcam1982]

Thanks for replaying. I will look at this tommrow