Remmina 0.9.99.1, Ubuntu 14.04.

I installed Remmina from the repository. Also installed both the RDP and the VNC plugins from the repository. I have verified that remmina-plugin-vnc.so is in /usr/lib/remmina/plugins/

When I start Remmina, I see only the plugins for RDP, nothing for VNC.

Connecting to a remote host using RDP works just fine. Of course, if I try to connect to a remote host that requires the VNC protocol, I cannot, Remmina won't work in that case.

I've tried all kinds of solutions, but nothing's worked so far. I've tried complete removal and reinstallation, restarting Remmina, restarting the computer, etc.

(I originally asked this question on the "issues" GitHub page for Remmina, but they closed the question and told me that they wouldn't address it, that I had to ask it here.) 

Please help me with this problem. Thanks.