Won't Even Verify Blink

Having not used my Arduino for a year or so I went back to it and found that nothing works. Even with no board connected (it doesn't matter whether there is or not), and loading the simple "Blink" example, I always get the following error message when I just try to verify it.

avr-g++: error: missing filename after '-o'

exit status 1

Error compiling.

Will presume you tried to re-install the IDE ?
Or if you haven’t used it for a year have you tried to upgrade the IDE ?

Yes, upgrading the IDE has solved the problem. Thank you very much.