it's been 30 minutes and Minecraft hasn't launched. it doesn't seem to want to launch.

it's been 30 minutes and Minecraft hasn't launched. it doesn't seem to want to launch.

*What I expected to happen was that it would prepare, then launch in about a few minutes and I'd be ready to go.

*What actually happened was it kept saying "Preparing..." and it hasn't opened up Minecraft

Steps to Reproduce:
1. open the launcher
2. click ready to launch
3. wait