I downloaded a new texture pack call pureBDcraft and when ever i try to log in to minecraft it crashes. So i am not able to take the texture pack off.

I downloaded a new texture pack call pureBDcraft and when ever i try to log in to minecraft it crashes. So i am not able to take the texture pack off.

What I expected to happen was...:
To log in to minecraft normally.

What actually happened was...:
Minecraft crashes before i am able to even have a chance of taking the texture pack off (pureBDcraft)

Steps to Reproduce:
1. Find minecraft in finder.
2. Click minecraft icon.
3. Hit the log in button on the launcher