Minecraft 1.7.2 keeps crashing?

Okay so everything is normal until I load a world it works for a second then crashes. It says I joined the game, left with bad state, then tries to delete 1.7.2-natives-268568631012159
Ignoring visibility rule and showing launcher due to a game crash and it can't delete the native file things. I've deleted it and re downloaded the launcher 3 time and it works when I first play it, but then when I get back on later it does this bug. How can I fix this?

Cooldude30256

I think your Minecraft file (the jar file) or your world is buggy, download a fresh version and install them. Are you getting this error while running on Minecraft server?

Guest