If that isn't working, there is no telling what else isn't working.
It's a VM. Make a new VM. Restore the config. Power off the old one, power on the new one, install the package.
It's a lot easier to make a fresh install into a VM than real hardware. There is very little compelling reason to fight something that is obviously corrupt or not proper about a VM.
Yes, easy fix !
- but I'm still interested to find what went and is wrong and how to avoid it next time! This same problem or bug might popup again and then you should have the knowledge fix it easily or even avoid it totally. That's why we use RC/BETA's to find these kind of bugs and unwanted features. The beta testing it's not always to find the easy fix but solid solution :-)