When trying to launch any version of minecraft, the game crashes.

Put the summary of the bug you're having here

What I expected to happen...
Describe what you thought should happen here
The game would launch like it would before and I could play Minecraft.
What actually happened was...:
Describe what happened here
The game crashes.
Steps to Reproduce:
1. Select any profile for Minecraft
2. ...Click Play
3. ...Game crashes