D9.1.0-rc3 installation failed

[devagit]

An attempt to instal console on top of D9.1.0-rc3 site resulted in compatibility error:

composer require drupal/console --prefer-dist --optimize-autoloader

Using version ^1.9 for drupal/console
./composer.json has been updated
Gathering patches for root package.
Loading composer repositories with package information
Updating dependencies (including require-dev)
Your requirements could not be resolved to an installable set of packages.

  Problem 1
    - drupal/console 1.9.5 requires drupal/console-core 1.9.6 -> satisfiable by drupal/console-core[1.9.6].
    - Conclusion: don't install drupal/console-core 1.9.6
    - drupal/console 1.9.4 requires drupal/console-core 1.9.4 -> satisfiable by drupal/console-core[1.9.4].
    - Conclusion: don't install drupal/console-core 1.9.4
    - drupal/console 1.9.3 requires drupal/console-core 1.9.3 -> satisfiable by drupal/console-core[1.9.3].
    - Conclusion: don't install drupal/console-core 1.9.3
    - drupal/console 1.9.2 requires drupal/console-core 1.9.2 -> satisfiable by drupal/console-core[1.9.2].
    - Conclusion: don't install drupal/console-core 1.9.2
    - drupal/console 1.9.1 requires drupal/console-core 1.9.1 -> satisfiable by drupal/console-core[1.9.1].
    - Conclusion: don't install drupal/console-core 1.9.1
    - drupal/console v1.9.0 requires drupal/console-core 1.9.0 -> satisfiable by drupal/console-core[v1.9.0].
    - Conclusion: remove symfony/console v4.4.16
    - Conclusion: don't install drupal/console-core 1.9.6|remove symfony/finder v5.1.8|install symfony/finder 3.0.x-dev|install symfony/finder 3.1.x-dev|install symfony/finder 3.2.x-dev|install symfony/finder 3.3.x-dev|install symfony/finder v3.0.0|install symfony/finder v3.0.0-BETA1|install symfony/finder v3.0.1|install symfony/finder v3.0.2|install symfony/finder v3.0.3|install symfony/finder v3.0.4|install symfony/finder v3.0.5|install symfony/finder v3.0.6|install symfony/finder v3.0.7|install symfony/finder v3.0.8|install symfony/finder v3.0.9|install symfony/finder v3.1.0|install symfony/finder v3.1.0-BETA1|install symfony/finder v3.1.0-RC1|install symfony/finder v3.1.1|install symfony/finder v3.1.10|install symfony/finder v3.1.2|install symfony/finder v3.1.3|install symfony/finder v3.1.4|install symfony/finder v3.1.5|install symfony/finder v3.1.6|install symfony/finder v3.1.7|install symfony/finder v3.1.8|install symfony/finder v3.1.9|install symfony/finder v3.2.0|install symfony/finder v3.2.0-BETA1|install symfony/finder v3.2.0-RC1|install symfony/finder v3.2.0-RC2|install symfony/finder v3.2.1|install symfony/finder v3.2.10|install symfony/finder v3.2.11|install symfony/finder v3.2.12|install symfony/finder v3.2.13|install symfony/finder v3.2.14|install symfony/finder v3.2.2|install symfony/finder v3.2.3|install symfony/finder v3.2.4|install symfony/finder v3.2.5|install symfony/finder v3.2.6|install symfony/finder v3.2.7|install symfony/finder v3.2.8|install symfony/finder v3.2.9|install symfony/finder v3.3.0|install symfony/finder v3.3.0-BETA1|install symfony/finder v3.3.0-RC1|install symfony/finder v3.3.1|install symfony/finder v3.3.10|install symfony/finder v3.3.11|install symfony/finder v3.3.12|install symfony/finder v3.3.13|install symfony/finder v3.3.14|install symfony/finder v3.3.15|install symfony/finder v3.3.16|install symfony/finder v3.3.17|install symfony/finder v3.3.18|install symfony/finder v3.3.2|install symfony/finder v3.3.3|install symfony/finder v3.3.4|install symfony/finder v3.3.5|install symfony/finder v3.3.6|install symfony/finder v3.3.7|install symfony/finder v3.3.8|install symfony/finder v3.3.9
    - Conclusion: don't install drupal/console-core 1.9.6|don't install symfony/finder v5.1.8|install symfony/finder 3.0.x-dev|install symfony/finder 3.1.x-dev|install symfony/finder 3.2.x-dev|install symfony/finder 3.3.x-dev|install symfony/finder v3.0.0|install symfony/finder v3.0.0-BETA1|install symfony/finder v3.0.1|install symfony/finder v3.0.2|install symfony/finder v3.0.3|install symfony/finder v3.0.4|install symfony/finder v3.0.5|install symfony/finder v3.0.6|install symfony/finder v3.0.7|install symfony/finder v3.0.8|install symfony/finder v3.0.9|install symfony/finder v3.1.0|install symfony/finder v3.1.0-BETA1|install symfony/finder v3.1.0-RC1|install symfony/finder v3.1.1|install symfony/finder v3.1.10|install symfony/finder v3.1.2|install symfony/finder v3.1.3|install symfony/finder v3.1.4|install symfony/finder v3.1.5|install symfony/finder v3.1.6|install symfony/finder v3.1.7|install symfony/finder v3.1.8|install symfony/finder v3.1.9|install symfony/finder v3.2.0|install symfony/finder v3.2.0-BETA1|install symfony/finder v3.2.0-RC1|install symfony/finder v3.2.0-RC2|install symfony/finder v3.2.1|install symfony/finder v3.2.10|install symfony/finder v3.2.11|install symfony/finder v3.2.12|install symfony/finder v3.2.13|install symfony/finder v3.2.14|install symfony/finder v3.2.2|install symfony/finder v3.2.3|install symfony/finder v3.2.4|install symfony/finder v3.2.5|install symfony/finder v3.2.6|install symfony/finder v3.2.7|install symfony/finder v3.2.8|install symfony/finder v3.2.9|install symfony/finder v3.3.0|install symfony/finder v3.3.0-BETA1|install symfony/finder v3.3.0-RC1|install symfony/finder v3.3.1|install symfony/finder v3.3.10|install symfony/finder v3.3.11|install symfony/finder v3.3.12|install symfony/finder v3.3.13|install symfony/finder v3.3.14|install symfony/finder v3.3.15|install symfony/finder v3.3.16|install symfony/finder v3.3.17|install symfony/finder v3.3.18|install symfony/finder v3.3.2|install symfony/finder v3.3.3|install symfony/finder v3.3.4|install symfony/finder v3.3.5|install symfony/finder v3.3.6|install symfony/finder v3.3.7|install symfony/finder v3.3.8|install symfony/finder v3.3.9
    - Installation request for symfony/dependency-injection (locked at v4.4.16) -> satisfiable by symfony/dependency-injection[v4.4.16].
    - Conclusion: don't install drupal/console-core 1.9.6|remove symfony/finder v5.1.8|install symfony/finder 3.0.x-dev|install symfony/finder 3.1.x-dev|install symfony/finder 3.2.x-dev|install symfony/finder 3.3.x-dev|install symfony/finder v3.0.0|install symfony/finder v3.0.0-BETA1|install symfony/finder v3.0.1|install symfony/finder v3.0.2|install symfony/finder v3.0.3|install symfony/finder v3.0.4|install symfony/finder v3.0.5|install symfony/finder v3.0.6|install symfony/finder v3.0.7|install symfony/finder v3.0.8|install symfony/finder v3.0.9|install symfony/finder v3.1.0|install symfony/finder v3.1.0-BETA1|install symfony/finder v3.1.0-RC1|install symfony/finder v3.1.1|install symfony/finder v3.1.10|install symfony/finder v3.1.2|install symfony/finder v3.1.3|install symfony/finder v3.1.4|install symfony/finder v3.1.5|install symfony/finder v3.1.6|install symfony/finder v3.1.7|install symfony/finder v3.1.8|install symfony/finder v3.1.9|install symfony/finder v3.2.0|install symfony/finder v3.2.0-BETA1|install symfony/finder v3.2.0-RC1|install symfony/finder v3.2.0-RC2|install symfony/finder v3.2.1|install symfony/finder v3.2.10|install symfony/finder v3.2.11|install symfony/finder v3.2.12|install symfony/finder v3.2.13|install symfony/finder v3.2.14|install symfony/finder v3.2.2|install symfony/finder v3.2.3|install symfony/finder v3.2.4|install symfony/finder v3.2.5|install symfony/finder v3.2.6|install symfony/finder v3.2.7|install symfony/finder v3.2.8|install symfony/finder v3.2.9|install symfony/finder v3.3.0|install symfony/finder v3.3.0-BETA1|install symfony/finder v3.3.0-RC1|install symfony/finder v3.3.1|install symfony/finder v3.3.10|install symfony/finder v3.3.11|install symfony/finder v3.3.12|install symfony/finder v3.3.13|install symfony/finder v3.3.14|install symfony/finder v3.3.15|install symfony/finder v3.3.16|install symfony/finder v3.3.17|install symfony/finder v3.3.18|install symfony/finder v3.3.2|install symfony/finder v3.3.3|install symfony/finder v3.3.4|install symfony/finder v3.3.5|install symfony/finder v3.3.6|install symfony/finder v3.3.7|install symfony/finder v3.3.8|install symfony/finder v3.3.9
    - Conclusion: don't install drupal/console-core 1.9.6|don't install symfony/finder v5.1.8|install symfony/finder 3.0.x-dev|install symfony/finder 3.1.x-dev|install symfony/finder 3.2.x-dev|install symfony/finder 3.3.x-dev|install symfony/finder v3.0.0|install symfony/finder v3.0.0-BETA1|install symfony/finder v3.0.1|install symfony/finder v3.0.2|install symfony/finder v3.0.3|install symfony/finder v3.0.4|install symfony/finder v3.0.5|install symfony/finder v3.0.6|install symfony/finder v3.0.7|install symfony/finder v3.0.8|install symfony/finder v3.0.9|install symfony/finder v3.1.0|install symfony/finder v3.1.0-BETA1|install symfony/finder v3.1.0-RC1|install symfony/finder v3.1.1|install symfony/finder v3.1.10|install symfony/finder v3.1.2|install symfony/finder v3.1.3|install symfony/finder v3.1.4|install symfony/finder v3.1.5|install symfony/finder v3.1.6|install symfony/finder v3.1.7|install symfony/finder v3.1.8|install symfony/finder v3.1.9|install symfony/finder v3.2.0|install symfony/finder v3.2.0-BETA1|install symfony/finder v3.2.0-RC1|install symfony/finder v3.2.0-RC2|install symfony/finder v3.2.1|install symfony/finder v3.2.10|install symfony/finder v3.2.11|install symfony/finder v3.2.12|install symfony/finder v3.2.13|install symfony/finder v3.2.14|install symfony/finder v3.2.2|install symfony/finder v3.2.3|install symfony/finder v3.2.4|install symfony/finder v3.2.5|install symfony/finder v3.2.6|install symfony/finder v3.2.7|install symfony/finder v3.2.8|install symfony/finder v3.2.9|install symfony/finder v3.3.0|install symfony/finder v3.3.0-BETA1|install symfony/finder v3.3.0-RC1|install symfony/finder v3.3.1|install symfony/finder v3.3.10|install symfony/finder v3.3.11|install symfony/finder v3.3.12|install symfony/finder v3.3.13|install symfony/finder v3.3.14|install symfony/finder v3.3.15|install symfony/finder v3.3.16|install symfony/finder v3.3.17|install symfony/finder v3.3.18|install symfony/finder v3.3.2|install symfony/finder v3.3.3|install symfony/finder v3.3.4|install symfony/finder v3.3.5|install symfony/finder v3.3.6|install symfony/finder v3.3.7|install symfony/finder v3.3.8|install symfony/finder v3.3.9
    - Installation request for symfony/finder (locked at v5.1.8) -> satisfiable by symfony/finder[v5.1.8].
    - Installation request for drupal/console ^1.9 -> satisfiable by drupal/console[1.9.1, 1.9.2, 1.9.3, 1.9.4, 1.9.5, v1.9.0].
    - Conclusion: don't install symfony/console v4.4.16
    - drupal/console-core v1.9.0 requires symfony/event-dispatcher ~2.8|~3.0 -> satisfiable by symfony/event-dispatcher[2.8.x-dev, 3.0.x-dev, 3.1.x-dev, 3.2.x-dev, 3.3.x-dev, 3.4.x-dev, v2.8.0, v2.8.0-BETA1, v2.8.1, v2.8.10, v2.8.11, v2.8.12, v2.8.13, v2.8.14, v2.8.15, v2.8.16, v2.8.17, v2.8.18, v2.8.19, v2.8.2, v2.8.20, v2.8.21, v2.8.22, v2.8.23, v2.8.24, v2.8.25, v2.8.26, v2.8.27, v2.8.28, v2.8.29, v2.8.3, v2.8.30, v2.8.31, v2.8.32, v2.8.33, v2.8.34, v2.8.35, v2.8.36, v2.8.37, v2.8.38, v2.8.39, v2.8.4, v2.8.40, v2.8.41, v2.8.42, v2.8.43, v2.8.44, v2.8.45, v2.8.46, v2.8.47, v2.8.48, v2.8.49, v2.8.5, v2.8.50, v2.8.52, v2.8.6, v2.8.7, v2.8.8, v2.8.9, v3.0.0, v3.0.0-BETA1, v3.0.1, v3.0.2, v3.0.3, v3.0.4, v3.0.5, v3.0.6, v3.0.7, v3.0.8, v3.0.9, v3.1.0, v3.1.0-BETA1, v3.1.0-RC1, v3.1.1, v3.1.10, v3.1.2, v3.1.3, v3.1.4, v3.1.5, v3.1.6, v3.1.7, v3.1.8, v3.1.9, v3.2.0, v3.2.0-BETA1, v3.2.0-RC1, v3.2.0-RC2, v3.2.1, v3.2.10, v3.2.11, v3.2.12, v3.2.13, v3.2.14, v3.2.2, v3.2.3, v3.2.4, v3.2.5, v3.2.6, v3.2.7, v3.2.8, v3.2.9, v3.3.0, v3.3.0-BETA1, v3.3.0-RC1, v3.3.1, v3.3.10, v3.3.11, v3.3.12, v3.3.13, v3.3.14, v3.3.15, v3.3.16, v3.3.17, v3.3.18, v3.3.2, v3.3.3, v3.3.4, v3.3.5, v3.3.6, v3.3.7, v3.3.8, v3.3.9, v3.4.0, v3.4.0-BETA1, v3.4.0-BETA2, v3.4.0-BETA3, v3.4.0-BETA4, v3.4.0-RC1, v3.4.0-RC2, v3.4.1, v3.4.10, v3.4.11, v3.4.12, v3.4.13, v3.4.14, v3.4.15, v3.4.16, v3.4.17, v3.4.18, v3.4.19, v3.4.2, v3.4.20, v3.4.21, v3.4.22, v3.4.23, v3.4.24, v3.4.25, v3.4.26, v3.4.27, v3.4.28, v3.4.29, v3.4.3, v3.4.30, v3.4.31, v3.4.32, v3.4.33, v3.4.34, v3.4.35, v3.4.36, v3.4.37, v3.4.38, v3.4.39, v3.4.4, v3.4.40, v3.4.41, v3.4.42, v3.4.43, v3.4.44, v3.4.45, v3.4.46, v3.4.47, v3.4.5, v3.4.6, v3.4.7, v3.4.8, v3.4.9].
    - symfony/event-dispatcher 2.8.x-dev conflicts with symfony/console[v4.4.16].
    - symfony/event-dispatcher v2.8.0 conflicts with symfony/console[v4.4.16].
    - symfony/event-dispatcher v2.8.0-BETA1 conflicts with symfony/console[v4.4.16].
    - symfony/event-dispatcher v2.8.1 conflicts with symfony/console[v4.4.16].
    - symfony/event-dispatcher v2.8.10 conflicts with symfony/console[v4.4.16].
    - ........
    - symfony/event-dispatcher v3.4.7 conflicts with symfony/console[v4.4.16].
    - symfony/event-dispatcher v3.4.8 conflicts with symfony/console[v4.4.16].
    - symfony/event-dispatcher v3.4.9 conflicts with symfony/console[v4.4.16].
    - Installation request for symfony/console (locked at v4.4.16) -> satisfiable by symfony/console[v4.4.16].

Installation failed, reverting ./composer.json to its original content.

[SuperFred]

Same problem.

Solved by :

1. Manually edit composer.json

Add "drupal/console" : "~1.0",

2. Run : composer update

[devagit]

Thank you SuperFred. It worked for me as well with new D9.1.0.

[RomixUA]

This is not a way to downgrade Symfony components to install Drupal Console.
It should be fixed in Drupal Console.

[chadmandoo]

Having this same issue. The SuperFred way fixed it. However this should not be a permanent fix IMO.