I had been using Remmina version 0.99.x or something similar for a while, when I decided to upgrade to a higher version, due to Remmina crashing often when copying (using Ctrl+C) or cutting (using Ctrl+X).
I upgraded using similar steps as outlined in this answer, adding Remmina's master PPA.
sudo add-apt-repository ppa:remmina-ppa-team/remmina-master
sudo apt-get update
sudo apt-get install remmina remmina-plugin-rdp
But when trying to connect to a Windows machine, Remmina threw up a pop-up that told me that
Protocol plugin RDP is not installed.
I tried fixing this, but to no avail, even purging Remmina and installing it again (I must admit, without a reboot in between).
sudo apt-get purge remmina-*
sudo apt-get autoremove
sudo apt-get install remmina remmina-plugin-vnc remmina-plugin-rdp
But nothing has worked so far. I've switched to rdesktop, but how can I fix Remmina?