System Information
OS: macOS Sierra 10.12.5
GPU: NVIDIA GeForce GTX 780M 4096 MB

Blender Version
2.78 2-27-2017

Short description of error
I am able to open and manipulate mesh in blender, However, when i try to assign or create a new material blender crashes. I have tried to find the crash log file but it is also not writing one to my /tmp directory. This happens on existing files or on a brand new file and assigning a material to a simple UV sphere.