Hi Graham,
You might want to check if one of the things that were suggested in this thread helps you:
I am not a PHP programmer (I am a programmer though) but this sounds to me this sounds like bootstrap.php can’t find the file (or finds an previous version of the file) which is supposed to define PHP_CONSOLE…
Is it because the file was not installed or doesn’t have the right permissions (you did try a fwconsole chown hopefully), it is difficult to say hence why trying to reinstall over what was “installed” might work…
Your problem is probably related to that… Something the module/script was unable to deal is probably preventing it to complete successfully like it did for other people…
Good luck and have a nice day!
Nick