Try following:
sudo dpkg --configure -a
sudo apt-get install -f
Then try installation again
sudo bash -c "$(wget -O - http://apt.rb24.com/inst_rbfeeder.sh)"
Thanks for the info abcd567, I've just tried your suggestions but got this message after running the first two lines:
pi@raspberrypi ~ $ sudo dpkg --configure -a
pi@raspberrypi ~ $ sudo apt-get install -f
Reading package lists... Done
Building dependency tree
Reading state information... Done
0 upgraded, 0 newly installed, 0 to remove and 191 not upgraded.
Same message after running the install line as I posted earlier
Know you from FR24 Forum I believe ?
John