php composer error when attempting to add forum module to code

Here are my setup details to help troubleshoot the issue:

I'm running

Drupal 10.0.9
php 8.1.18
Database Version 10.6.12-MariaDB-0ubuntu0.22.04.1

My composer.json file is as follows:

{
    "name": "drupal/recommended-project",
    "description": "Project template for Drupal projects with a relocated document root",
    "type": "project",
    "license": "GPL-2.0-or-later",
    "homepage": "https://www.drupal.org/project/drupal",
    "support": {
        "docs": "https://www.drupal.org/docs/user_guide/en/index.html",
        "chat": "https://www.drupal.org/node/314178"
    },
    "repositories": [
        {
            "type": "composer",
            "url": "https://packages.drupal.org/8"
        }
    ],
    "require": {
        "composer/installers": "^2.0",
        "drupal/core-composer-scaffold": "^10.0",
        "drupal/core-project-message": "^10.0",
        "drupal/core-recommended": "^10.0",
        "drupal/social_auth_facebook": "^4.0",
        "drush/drush": "^11.5"
    },
    "conflict": {
        "drupal/drupal": "*"
    },
    "minimum-stability": "stable",
    "prefer-stable": true,
    "config": {
        "allow-plugins": {
            "composer/installers": true,
            "drupal/core-composer-scaffold": true,
            "drupal/core-project-message": true,
            "phpstan/extension-installer": true,
            "dealerdirect/phpcodesniffer-composer-installer": true
        },
        "sort-packages": true
    },
    "extra": {
        "drupal-scaffold": {
            "locations": {
                "web-root": "web/"
            }
        },
        "installer-paths": {
            "web/core": [
                "type:drupal-core"
            ],
            "web/libraries/{$name}": [
                "type:drupal-library"
            ],
            "web/modules/contrib/{$name}": [
                "type:drupal-module"
            ],
            "web/profiles/contrib/{$name}": [
                "type:drupal-profile"
            ],
            "web/themes/contrib/{$name}": [
                "type:drupal-theme"
            ],
            "drush/Commands/contrib/{$name}": [
                "type:drupal-drush"
            ],
            "web/modules/custom/{$name}": [
                "type:drupal-custom-module"
            ],
            "web/profiles/custom/{$name}": [
                "type:drupal-custom-profile"
            ],
            "web/themes/custom/{$name}": [
                "type:drupal-custom-theme"
            ]
        },
        "drupal-core-project-message": {
            "include-keys": [
                "homepage",
                "support"
            ],
            "post-create-project-cmd-message": [
                "<bg=blue;fg=white>                                                         </>",
                "<bg=blue;fg=white>  Congratulations, you’ve installed the Drupal codebase  </>",
                "<bg=blue;fg=white>  from the drupal/recommended-project template!          </>",
                "<bg=blue;fg=white>                                                         </>",
                "",
                "<bg=yellow;fg=black>Next steps</>:",
                "  * Install the site: https://www.drupal.org/docs/installing-drupal",
                "  * Read the user guide: https://www.drupal.org/docs/user_guide/en/index.html",
                "  * Get support: https://www.drupal.org/support",
                "  * Get involved with the Drupal community:",
                "      https://www.drupal.org/getting-involved",
                "  * Remove the plugin that prints this message:",
                "      composer remove drupal/core-project-message"
            ]
        }
    }
}

If I relax the stability to "minimum-stability": "dev", I can install it.

Interestingly, I don't see a composer.json in https://git.drupalcode.org/project/forum ...

If I relax the stability to "minimum-stability": "dev", I can install it.

Champion @ressa - yes that worked, thankyou:

$ ./composer require 'drupal/forum:^1.0'
Info from https://repo.packagist.org: #StandWithUkraine
./composer.json has been updated
Running composer update drupal/forum
Loading composer repositories with package information
Updating dependencies
Lock file operations: 1 install, 0 updates, 0 removals
  - Locking drupal/forum (dev-1.x 4978fff)
Writing lock file
Installing dependencies from lock file (including require-dev)
Package operations: 1 install, 0 updates, 0 removals
  - Syncing drupal/forum (dev-1.x 4978fff) into cache
  - Installing drupal/forum (dev-1.x 4978fff): Cloning 4978fff629 from cache
Generating autoload files
42 packages you are using are looking for funding.
Use the `composer fund` command to find out more!
No security vulnerability advisories found
$

Not sure why it needs to be "dev" though, given that the release doesn't have that mentioned in the name, nor alpha, nor beta, it's just: "1.0.0", so I'd say stable ought to work.

The maintainers have not released Drupal 10 compatible version of the module.

When we add "minimum-stability": "dev" in composer the dev release of the module gets installed which is compatible with Drupal 10. The Maintainers need to create a new release supporting Drupal 10 using latest code from dev branch incase there are no more changes required for Drupal 10.

thanks @arisen - closed as worked as designed.

@therobyouknow: Great you got it downloaded! Like I noted before, there is no composer.json file, which could explain some of the odd behavior ... I created the issue 📌 Add a composer.json file Needs review .

@arisen: The module is installable on all releases after Drupal 9.4, from forum.info.yml:

core_version_requirement: '>=9.4'

I don't know if it works, though.

Oops, updated the title by mistake. Reverting.

@ressa No the stable version of forum module is not installable on Drupal 9 if the composer file has "minimum-stability": "stable".

The stable release(1.0.0) of the module doesn't have core_version_requirement set to 9.4. You can check the info file of the stable releasehere.

The maintainers need to create a new release to support Drupal 10. Before Drupal 10 forum module was part of the core but won't be in Drupal 10 hence this module.

Also as per my opinion, we shouldn't be creating the composer.json file just to specify the Drupal version. More details here https://www.drupal.org/docs/develop/creating-modules/add-a-composerjson-... →

@arisen: You're right, I was looking in the dev-version, which has the core_version_requirement: '>=9.4' line and can be installed in Drupal 10. I agree that it would be great if a stable release was tagged by the maintainers.

Before Drupal 10 forum module was part of the core but won't be in Drupal 10 hence this module.

FWIW this is not true. We _wanted_ to remove it from core but we ran out of time.

It is still part of Drupal core and you do not need this module yet

Thanks for the clarification @larowlan :)
I had read about the plan to remove it, but did not verify its presence in Drupal 10 core.