I thought I would try my hand at making custom worlds, so I downloaded World Painter. I designed my world and exported it. I then clicked on my Minecraft icon, it looked like it was about to open, and then boom. Closed itself, and now I cannot get it to start at all. I then put all my worlds and textures in a temp file and just deleted the whole MC file, and re downloaded it. Of course, this did not fix my problem, and now I am at a loss, and I really need your help Minecraftforum.net!!
I installed World Painter, and now Minecraft will not run on my computer. Anyone know how to fix this problem?