I had this same problem.
This worked for me:
sudo apt-add-repository "deb http://archive.canonical.com/ $(lsb_release -sc) partner"
sudo apt-get update
source: VMWARE View install - Ask Ubuntu
I had this same problem.
This worked for me:
sudo apt-add-repository "deb http://archive.canonical.com/ $(lsb_release -sc) partner"
sudo apt-get update
source: VMWARE View install - Ask Ubuntu