Launcher Crashes on Mac

Put the summary of the bug you're having here When launching the game the launcher crashed and failed to start the game.

What I expected to happen was...: The game started about 1 hour earlier.
Describe what you thought should happen here

What actually happened was...:
Describe what happened here

Steps to Reproduce:
1. We shut down the computer and restarted and then tried to restart Minecraft but it wouldn't start.
We cleaned out some other texture packs and a copy of Minecraft. Still wouldn't work.
I deleted the game and reloaded it. Still no luck.

See the error message below.
3. ...