いつもどおりlaradockを起動しようとすると次のメッセージが出て起動しない。

------
 > [laradock_workspace  5/92] RUN set -xe;     apt-get update -yqq &&     pecl channel-update pecl.php.net &&     groupadd -g 1000 laradock &&     useradd -u 1000 -g laradock -m laradock -G docker_env &&     usermod -p "*" laradock -s /bin/bash &&     apt-get install -yqq       apt-utils       libzip-dev zip unzip       php7.3-zip       nasm &&       php -m | grep -q 'zip':
#40 0.252 + apt-get update -yqq
#40 31.24 + pecl channel-update pecl.php.net
#40 31.29 Updating channel "pecl.php.net"
#40 31.69 Update of Channel "pecl.php.net" succeeded
#40 31.69 + groupadd -g 1000 laradock
#40 31.70 + useradd -u 1000 -g laradock -m laradock -G docker_env
#40 31.73 + usermod -p * laradock -s /bin/bash
#40 31.74 + apt-get install -yqq apt-utils libzip-dev zip unzip php7.3-zip nasm
#40 33.07 E: Unable to correct problems, you have held broken packages.
------
failed to solve: rpc error: code = Unknown desc = executor failed running [/bin/sh -c set -xe;     apt-get update -yqq &&     pecl channel-update pecl.php.net &&     groupadd -g ${PGID} laradock &&     useradd -u ${PUID} -g laradock -m laradock -G docker_env &&     usermod -p "*" laradock -s /bin/bash &&     apt-get install -yqq       apt-utils       libzip-dev zip unzip       php${LARADOCK_PHP_VERSION}-zip       nasm &&       php -m | grep -q 'zip']: exit code: 100

why?

やったことは、dockerのアップデートが走ったぐらい。

環境は

Macbook2019

Mac OS Big Sur(11.4)

docker desktop(3.5.2)

うーん。

いろいろ調べて以下で無事起動

workspace/Dockerfile の以下をコメントアウト

# always run apt update when start and after add new source list, then clean up at end.
RUN set -xe; \
    apt-get update -yqq && \
    pecl channel-update pecl.php.net && \
    groupadd -g ${PGID} laradock && \
    useradd -u ${PUID} -g laradock -m laradock -G docker_env && \
    usermod -p "*" laradock -s /bin/bash && \
    apt-get install -yqq \
	  apt-utils　←追加
      ###apt-utils \　←コメントアウト 
      #
      #--------------------------------------------------------------------------
      # Mandatory Software's Installation
      #--------------------------------------------------------------------------
      #
      # Mandatory Software's such as ("php-cli", "git", "vim", ....) are
      # installed on the base image 'laradock/workspace' image. If you want
      # to add more Software's or remove existing one, you need to edit the
      # base image (https://github.com/Laradock/workspace).
      #
      # next lines are here becase there is no auto build on dockerhub see https://github.com/laradock/laradock/pull/1903#issuecomment-463142846
      ###libzip-dev zip unzip \　←コメントアウト 
      # Install the zip extension
      ###php${LARADOCK_PHP_VERSION}-zip \　←コメントアウト 
      # nasm
      ###nasm && \　←コメントアウト 
      ###php -m | grep -q 'zip'　←コメントアウト