VMWare Fusion Could not open /dev/vmmon: Broken pipe

I'm not sure what happened.  VMWare Fusion was working after I upgraded to macOS Mojave and then some time later stopped working.  I'm getting:

> Could not open /dev/vmmon: Broken pipe

> Please make sure that the kernel module 'vmmon' is loaded

followed by:

> Failed to initialize monitor device

followed by:

> Transport (VMDB) error -14: Pip connection has been broken

I uninstalled VMWare Fusion including the manual cleanup as documented in https://kb.vmware.com/s/article/1017838.

, emptied the trash, rebooted, re-downloaded the installee, reinstalled, and I still get the same errors.  I still get the error and, oddly, even after doing all all the uninstall and cleanup, Fusion still knows my license key. 

Any suggestions on where the problem is?

Ken