Running nginx on a Raspberry PI, php-fpm fails to install

I have nginx installed Ok with it running using my johnrose.mywire.org server block. When I try to install php-fpm it fails:
[code]
Active: failed (Result: exit-code) since Fri 2024-11-08 09:42:43 GMT; 20ms ago
Docs: man:php-fpm7.4(8)
Process: 3385 ExecStart=/usr/sbin/php-fpm7.4 –nodaemonize –fpm-config /etc/php/7.4
/fpm/php-fpm.conf (code=exited, status=78)
[/code]

I have purged php-fpm & php7.4-fpm as well as deleting the directory /etc/php with its contents. But I still get this problem. Any ideas please?