First run below command from terminal
sudo apt-get install python3-configobj python3-gtkspellcheck python3-svn subversion python3-dulwich python3-pygments git meld python3-tk
Install RabbitVCS with Nautilus support:
sudo apt install rabbitvcs-nautilus
Restart Nautilus:
nautilus -q
For Thunar (XFCE):
sudo apt install rabbitvcs-thunar
Then restart Thunar:
thunar -q
For Caja (MATE):
sudo apt install rabbitvcs-caja
