Error during build Docker Image

[IoSonoPiero]

Hello people, I'm a newbie so please forgive me if I'm doing something wrong. I did: git clone https://github.com/misterunknown/ifm.git then: docker build -t ifm . I get this error:

 => [internal] load build definition from Dockerfile                                                                                                                                                                                                              0.0s
 => => transferring dockerfile: 1.37kB                                                                                                                                                                                                                            0.0s
 => [internal] load metadata for docker.io/library/php:8-cli-alpine                                                                                                                                                                                               0.5s
 => [internal] load .dockerignore                                                                                                                                                                                                                                 0.0s
 => => transferring context: 69B                                                                                                                                                                                                                                  0.0s
 => [ 1/11] FROM docker.io/library/php:8-cli-alpine@sha256:11b591afe11ccbea0dd912a6f0ca47cf6720a7d2b5c3e9cf1b0c055e050f09e9                                                                                                                                       0.0s
 => [internal] load build context                                                                                                                                                                                                                                 0.0s
 => => transferring context: 2.94kB                                                                                                                                                                                                                               0.0s
 => CACHED [ 2/11] RUN apk add --no-cache     bzip2-dev     libcap-dev     libcap-utils     libzip-dev     openldap-dev     sudo                                                                                                                                  0.0s
 => CACHED [ 3/11] RUN docker-php-ext-install     bz2     fileinfo     ldap     posix     zip                                                                                                                                                                     0.0s
 => CACHED [ 4/11] RUN /usr/sbin/setcap CAP_NET_BIND_SERVICE=+eip /usr/local/bin/php                                                                                                                                                                              0.0s
 => ERROR [ 5/11] RUN deluser xfs &&     deluser www-data                                                                                                                                                                                                         0.3s
------                                                                                                                                                                                                                                                                 
 > [ 5/11] RUN deluser xfs &&     deluser www-data:
0.296 deluser: unknown user xfs
------
Dockerfile:28
--------------------
  27 |     # remove unnecessary users
  28 | >>> RUN deluser xfs && \
  29 | >>>     deluser www-data
  30 |     
--------------------
ERROR: failed to solve: process "/bin/sh -c deluser xfs &&     deluser www-data" did not complete successfully: exit code: 1```

I think I can proceed editing that in Dockerfile, but I'd like to know what I'm doing wrong.
Can anyone help, please?

[misterunknown]

Thanks for your issue. I fixed that in 421fe00.