can not open minecraft launcher

Put the summary of the bug you're having here

What I expected to happen was...:
Describe what you thought should happen here
I expected it to open normally but it didn't and wouldn't open

What actually happened was...:
Describe what happened here
It wouldn't open or launch

Steps to Reproduce:
1. Put a step by step guide on how to trigger the bug here
2. ... open minecraft
3. ... click play