PHP error: “The zip extension and unzip command are both missing, skipping.”

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When I run a composer update I get this error message:

Loading composer repositories with package information
Updating dependencies (including require-dev)
    Failed to download psr/log from dist: The zip extension and unzip command are both missing, skipping.
The php.ini used by your command-line PHP is: /etc/php/7.0/cli/php.ini
    Now trying to download from source

What do I need to do to enable the zip and unzip commands so that composer can download dependencies?

  • 1

    Workaround: Use composer update --prefer-source I had this issue when trying to composer update phpspec. Failed to download symfony/polyfill-ctype from dist: The zip extension and unzip command are both missing, skipping. I am on a Mac and had problems making Homebrew work to install php extensions. So, my quick fix was to force composer not to need to use zip by adding the –prefer-source option. This means it downloads the repo instead of a zipped package. Not a long term solution but handy to know.

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