Failed executing external process for 'Bake Visibility' job

Since this morning, I have the error "Failed executing external process for 'Bake Visibility' job when I try to bake my lightmaps. We do not use any real time lights in this project and I did not change any of my settings for baking today. We updated for the 5.2.1p2 on Monday.

I already tried to clear the cache numbers of times. I also tried to allocate more memory and also I try with a customed location.

I really do not know what is going on and it is really problematic.

Is any of you already got that issue? What could be the cause of this situation?

Edit: I just uninstall and reinstall Unity and the problem is still there.

 

I have the exact same problem. My baking is stuck because of this error and I can't find any solution.

 

Check my replay in this thread for few tips on lightmap,
http://forum.unity3d.com/threads/your-tips-on-speeding-up-lightmapping.376736/

Also support and vote for this lightmap idea if you liked where we can build lightmap at online for high performance,
https://feedback.unity3d.com/suggestions/online-service-for-lightmap