Did the installation complete? I had the same problem and however the installation said it was completed there was nothing installed. In my case there was a firewall between the client which ran the installation and vCenter. This firewall blocked the copy traffic.
After running the installation inside the same network everything went fine. At the end I found it out with help of an existing installation. Here the installation files were available. However, on the faulty one the files weren't.
Hopefully this helps.