Composer install fails with "Your lock file does not contain a compatible set of packages."

[pentiumoverdrive]

I'm following the instructions with installing composer, but I'm receiving this error:

Status: Downloaded newer image for docker.io/composer:latest
Installing dependencies from lock file (including require-dev)
Verifying lock file contents can be installed on current platform.
Your lock file does not contain a compatible set of packages. Please run composer update.

Problem 1
- rlanvin/php-ip is locked to version v2.0.0 and an update of this package was not requested.
- rlanvin/php-ip v2.0.0 requires ext-gmp * -> it is missing from your system. Install or enable PHP's gmp extension.
Problem 2
- rlanvin/php-ip v2.0.0 requires ext-gmp * -> it is missing from your system. Install or enable PHP's gmp extension.
- badcow/dns v3.5.0 requires rlanvin/php-ip ~2.0 -> satisfiable by rlanvin/php-ip[v2.0.0].
- badcow/dns is locked to version v3.5.0 and an update of this package was not requested.

To enable extensions, verify that they are enabled in your .ini files:
- /usr/local/etc/php/php-cli.ini
- /usr/local/etc/php/conf.d/docker-php-ext-sodium.ini
- /usr/local/etc/php/conf.d/docker-php-ext-zip.ini
You can also run php --ini inside terminal to see which files are used by PHP in CLI mode.

[pacoorozco]

Hi @pentiumoverdrive

The docker composer image was missing the gmp PHP extension. So it was not able to resolve the dependencies. I've modified the app docker image to include composer inside it.

The README has been updated with the new guide to test probind.

Thanks for submitting the bug.