the requested PHP extension intl is missing about docker-composer

[fe3dback]

solved by adding arg --ignore-platform-reqs to install command:

command: install --ignore-platform-reqs

but why normaly it isnt work?

[alcohol]

The composer image does not contain the extension. Your application image does. Composer is not running inside your application image though, it is running inside its own image. You can create a custom image that extends the composer image and adds the necessary extension(s) for your application. But if you do not need these extensions for the install step, then it is best to just rely on --ignore-platform-reqs.

[MichaelBrauner]

How do I build custom images with extensions like gd ?