To be honest I cannot remember the version as I set up this feeder in my shed a couple of years ago !! I have a spare SD card image that I have been trying all this on, so I'll see what happens next with the above commands. This will have to wait now as I will be away tonight, but thanks for your suggestion. Will report back in about a week.
John
If trying "apt-get update" and "apt-get upgrade" dont solve the problem, try this one also:
sudo apt-get dist-upgrade
If all above fails, then the headache-free way is to format the microSD card and make a fresh install using latest versions of OS and all other software.
Thanks abcd567 for your help, but alas still fails with same missing files. I'll do a fresh install on another Pi I have and see where I go with that, problem I always have is trying to remember what is needed and excluding the tv sdr etc. Have lots of notes from FR24, so should be fun :-)
John
