Aqron_

So I downloaded pixelmon and whenever I open it, it just goes through the whole download thing and the bar fills up but then the launcher closes and reopens a split second later and the bar is gone and nothing has opened, it does this with any modpack I try using. I have already set the ram to use two and I have 8 gb's in my pc so it should work fine but it isn't and I am not sure what the problems is, please help.