PHP 8

[necrogami]

Trying to do composer install with php8 fails.
PHP 7.4 only has 8 months of support left.

necrogami@DESKTOP-56L3JFH:/mnt/c/Users/necrogami/code/game$ composer install
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
    - Root composer.json requires php ^7.2 but your php version (8.0.2) does not satisfy that requirement.
  Problem 2
    - composer/composer is locked to version 1.9.1 and an update of this package was not requested.
    - composer/composer 1.9.1 requires php ^5.3.2 || ^7.0 -> your php version (8.0.2) does not satisfy that requirement.
  Problem 3
    - composer/semver is locked to version 1.5.0 and an update of this package was not requested.
    - composer/semver 1.5.0 requires php ^5.3.2 || ^7.0 -> your php version (8.0.2) does not satisfy that requirement.
  Problem 4
    - doctrine/cache is locked to version 1.10.0 and an update of this package was not requested.
    - doctrine/cache 1.10.0 requires php ~7.1 -> your php version (8.0.2) does not satisfy that requirement.
  Problem 5
    - doctrine/dbal is locked to version v2.10.0 and an update of this package was not requested.
    - doctrine/dbal v2.10.0 requires php ^7.2 -> your php version (8.0.2) does not satisfy that requirement.
  Problem 6
    - doctrine/event-manager is locked to version 1.1.0 and an update of this package was not requested.
    - doctrine/event-manager 1.1.0 requires php ^7.1 -> your php version (8.0.2) does not satisfy that requirement.
  Problem 7
    - doctrine/inflector is locked to version 1.3.1 and an update of this package was not requested.
    - doctrine/inflector 1.3.1 requires php ^7.1 -> your php version (8.0.2) does not satisfy that requirement.
  Problem 8
    - doctrine/lexer is locked to version 1.2.0 and an update of this package was not requested.
    - doctrine/lexer 1.2.0 requires php ^7.2 -> your php version (8.0.2) does not satisfy that requirement.
  Problem 9
    - dragonmantank/cron-expression is locked to version v2.3.0 and an update of this package was not requested.
    - dragonmantank/cron-expression v2.3.0 requires php ^7.0 -> your php version (8.0.2) does not satisfy that requirement.
  Problem 10
    - laravel/framework is locked to version v6.18.13 and an update of this package was not requested.
    - laravel/framework v6.18.13 requires php ^7.2 -> your php version (8.0.2) does not satisfy that requirement.
  Problem 11
    - laravel/tinker is locked to version v2.0.0 and an update of this package was not requested.
    - laravel/tinker v2.0.0 requires php ^7.2 -> your php version (8.0.2) does not satisfy that requirement.
  Problem 12
    - league/commonmark is locked to version 1.4.3 and an update of this package was not requested.
    - league/commonmark 1.4.3 requires php ^7.1 -> your php version (8.0.2) does not satisfy that requirement.
  Problem 13
    - monolog/monolog is locked to version 2.0.1 and an update of this package was not requested.
    - monolog/monolog 2.0.1 requires php ^7.2 -> your php version (8.0.2) does not satisfy that requirement.
  Problem 14
    - opis/closure is locked to version 3.5.1 and an update of this package was not requested.
    - opis/closure 3.5.1 requires php ^5.4 || ^7.0 -> your php version (8.0.2) does not satisfy that requirement.
  Problem 15
    - paragonie/random_compat is locked to version v9.99.99 and an update of this package was not requested.
    - paragonie/random_compat v9.99.99 requires php ^7 -> your php version (8.0.2) does not satisfy that requirement.
  Problem 16
    - phpoption/phpoption is locked to version 1.6.0 and an update of this package was not requested.
    - phpoption/phpoption 1.6.0 requires php ^5.5.9 || ^7.0 -> your php version (8.0.2) does not satisfy that requirement.
  Problem 17
    - ramsey/uuid is locked to version 3.9.1 and an update of this package was not requested.
    - ramsey/uuid 3.9.1 requires php ^5.4 | ^7 -> your php version (8.0.2) does not satisfy that requirement.
  Problem 18
    - seld/jsonlint is locked to version 1.7.2 and an update of this package was not requested.
    - seld/jsonlint 1.7.2 requires php ^5.3 || ^7.0 -> your php version (8.0.2) does not satisfy that requirement.
  Problem 19
    - symfony/console is locked to version v4.4.1 and an update of this package was not requested.
    - symfony/console v4.4.1 requires php ^7.1.3 -> your php version (8.0.2) does not satisfy that requirement.
  Problem 20
    - symfony/css-selector is locked to version v5.0.1 and an update of this package was not requested.
    - symfony/css-selector v5.0.1 requires php ^7.2.5 -> your php version (8.0.2) does not satisfy that requirement.
  Problem 21
    - symfony/filesystem is locked to version v4.4.1 and an update of this package was not requested.
    - symfony/filesystem v4.4.1 requires php ^7.1.3 -> your php version (8.0.2) does not satisfy that requirement.
  Problem 22
    - symfony/finder is locked to version v4.4.1 and an update of this package was not requested.
    - symfony/finder v4.4.1 requires php ^7.1.3 -> your php version (8.0.2) does not satisfy that requirement.
  Problem 23
    - symfony/process is locked to version v4.4.1 and an update of this package was not requested.
    - symfony/process v4.4.1 requires php ^7.1.3 -> your php version (8.0.2) does not satisfy that requirement.
  Problem 24
    - symfony/routing is locked to version v4.4.1 and an update of this package was not requested.
    - symfony/routing v4.4.1 requires php ^7.1.3 -> your php version (8.0.2) does not satisfy that requirement.
  Problem 25
    - symfony/service-contracts is locked to version v2.0.1 and an update of this package was not requested.
    - symfony/service-contracts v2.0.1 requires php ^7.2.5 -> your php version (8.0.2) does not satisfy that requirement.
  Problem 26
    - symfony/translation is locked to version v4.4.1 and an update of this package was not requested.
    - symfony/translation v4.4.1 requires php ^7.1.3 -> your php version (8.0.2) does not satisfy that requirement.
  Problem 27
    - symfony/translation-contracts is locked to version v2.0.1 and an update of this package was not requested.
    - symfony/translation-contracts v2.0.1 requires php ^7.2.5 -> your php version (8.0.2) does not satisfy that requirement.
  Problem 28
    - tijsverkoyen/css-to-inline-styles is locked to version 2.2.2 and an update of this package was not requested.
    - tijsverkoyen/css-to-inline-styles 2.2.2 requires php ^5.5 || ^7.0 -> your php version (8.0.2) does not satisfy that requirement.
  Problem 29
    - vlucas/phpdotenv is locked to version v3.6.0 and an update of this package was not requested.
    - vlucas/phpdotenv v3.6.0 requires php ^5.4 || ^7.0 -> your php version (8.0.2) does not satisfy that requirement.
  Problem 30
    - doctrine/instantiator is locked to version 1.3.0 and an update of this package was not requested.
    - doctrine/instantiator 1.3.0 requires php ^7.1 -> your php version (8.0.2) does not satisfy that requirement.
  Problem 31
    - facade/flare-client-php is locked to version 1.3.0 and an update of this package was not requested.
    - facade/flare-client-php 1.3.0 requires php ^7.1 -> your php version (8.0.2) does not satisfy that requirement.
  Problem 32
    - facade/ignition is locked to version 1.13.0 and an update of this package was not requested.
    - facade/ignition 1.13.0 requires php ^7.1 -> your php version (8.0.2) does not satisfy that requirement.
  Problem 33
    - facade/ignition-contracts is locked to version 1.0.0 and an update of this package was not requested.
    - facade/ignition-contracts 1.0.0 requires php ^7.1 -> your php version (8.0.2) does not satisfy that requirement.
  Problem 34
    - facebook/webdriver is locked to version 1.7.1 and an update of this package was not requested.
    - facebook/webdriver 1.7.1 requires php ^5.6 || ~7.0 -> your php version (8.0.2) does not satisfy that requirement.
  Problem 35
    - filp/whoops is locked to version 2.5.0 and an update of this package was not requested.
    - filp/whoops 2.5.0 requires php ^5.5.9 || ^7.0 -> your php version (8.0.2) does not satisfy that requirement.
  Problem 36
    - fzaninotto/faker is locked to version v1.9.0 and an update of this package was not requested.
    - fzaninotto/faker v1.9.0 requires php ^5.3.3 || ^7.0 -> your php version (8.0.2) does not satisfy that requirement.
  Problem 37
    - hamcrest/hamcrest-php is locked to version v2.0.0 and an update of this package was not requested.
    - hamcrest/hamcrest-php v2.0.0 requires php ^5.3|^7.0 -> your php version (8.0.2) does not satisfy that requirement.
  Problem 38
    - laravel/dusk is locked to version dev-master and an update of this package was not requested.
    - laravel/dusk dev-master requires php ^7.2 -> your php version (8.0.2) does not satisfy that requirement.
  Problem 39
    - laravel/ui is locked to version v1.0.0 and an update of this package was not requested.
    - laravel/ui v1.0.0 requires php ^7.1.3 -> your php version (8.0.2) does not satisfy that requirement.
  Problem 40
    - maximebf/debugbar is locked to version v1.16.1 and an update of this package was not requested.
    - maximebf/debugbar v1.16.1 requires php ^7.1 -> your php version (8.0.2) does not satisfy that requirement.
  Problem 41
    - myclabs/deep-copy is locked to version 1.9.3 and an update of this package was not requested.
    - myclabs/deep-copy 1.9.3 requires php ^7.1 -> your php version (8.0.2) does not satisfy that requirement.
  Problem 42
    - nunomaduro/collision is locked to version v3.0.1 and an update of this package was not requested.
    - nunomaduro/collision v3.0.1 requires php ^7.1 -> your php version (8.0.2) does not satisfy that requirement.
  Problem 43
    - phar-io/manifest is locked to version 1.0.3 and an update of this package was not requested.
    - phar-io/manifest 1.0.3 requires php ^5.6 || ^7.0 -> your php version (8.0.2) does not satisfy that requirement.
  Problem 44
    - phar-io/version is locked to version 2.0.1 and an update of this package was not requested.
    - phar-io/version 2.0.1 requires php ^5.6 || ^7.0 -> your php version (8.0.2) does not satisfy that requirement.
  Problem 45
    - phpdocumentor/reflection-docblock is locked to version 4.3.2 and an update of this package was not requested.
    - phpdocumentor/reflection-docblock 4.3.2 requires php ^7.0 -> your php version (8.0.2) does not satisfy that requirement.
  Problem 46
    - phpdocumentor/type-resolver is locked to version 1.0.1 and an update of this package was not requested.
    - phpdocumentor/type-resolver 1.0.1 requires php ^7.1 -> your php version (8.0.2) does not satisfy that requirement.
  Problem 47
    - phpspec/prophecy is locked to version 1.9.0 and an update of this package was not requested.
    - phpspec/prophecy 1.9.0 requires php ^5.3|^7.0 -> your php version (8.0.2) does not satisfy that requirement.
  Problem 48
    - phpunit/php-code-coverage is locked to version 7.0.10 and an update of this package was not requested.
    - phpunit/php-code-coverage 7.0.10 requires php ^7.2 -> your php version (8.0.2) does not satisfy that requirement.
  Problem 49
    - phpunit/php-file-iterator is locked to version 2.0.2 and an update of this package was not requested.
    - phpunit/php-file-iterator 2.0.2 requires php ^7.1 -> your php version (8.0.2) does not satisfy that requirement.
  Problem 50
    - phpunit/php-timer is locked to version 2.1.2 and an update of this package was not requested.
    - phpunit/php-timer 2.1.2 requires php ^7.1 -> your php version (8.0.2) does not satisfy that requirement.
  Problem 51
    - phpunit/php-token-stream is locked to version 3.1.1 and an update of this package was not requested.
    - phpunit/php-token-stream 3.1.1 requires php ^7.1 -> your php version (8.0.2) does not satisfy that requirement.
  Problem 52
    - phpunit/phpunit is locked to version 8.5.0 and an update of this package was not requested.
    - phpunit/phpunit 8.5.0 requires php ^7.2 -> your php version (8.0.2) does not satisfy that requirement.
  Problem 53
    - sebastian/code-unit-reverse-lookup is locked to version 1.0.1 and an update of this package was not requested.
    - sebastian/code-unit-reverse-lookup 1.0.1 requires php ^5.6 || ^7.0 -> your php version (8.0.2) does not satisfy that requirement.
  Problem 54
    - sebastian/comparator is locked to version 3.0.2 and an update of this package was not requested.
    - sebastian/comparator 3.0.2 requires php ^7.1 -> your php version (8.0.2) does not satisfy that requirement.
  Problem 55
    - sebastian/diff is locked to version 3.0.2 and an update of this package was not requested.
    - sebastian/diff 3.0.2 requires php ^7.1 -> your php version (8.0.2) does not satisfy that requirement.
  Problem 56
    - sebastian/environment is locked to version 4.2.3 and an update of this package was not requested.
    - sebastian/environment 4.2.3 requires php ^7.1 -> your php version (8.0.2) does not satisfy that requirement.
  Problem 57
    - sebastian/exporter is locked to version 3.1.2 and an update of this package was not requested.
    - sebastian/exporter 3.1.2 requires php ^7.0 -> your php version (8.0.2) does not satisfy that requirement.
  Problem 58
    - sebastian/global-state is locked to version 3.0.0 and an update of this package was not requested.
    - sebastian/global-state 3.0.0 requires php ^7.2 -> your php version (8.0.2) does not satisfy that requirement.
  Problem 59
    - sebastian/object-enumerator is locked to version 3.0.3 and an update of this package was not requested.
    - sebastian/object-enumerator 3.0.3 requires php ^7.0 -> your php version (8.0.2) does not satisfy that requirement.
  Problem 60
    - sebastian/object-reflector is locked to version 1.1.1 and an update of this package was not requested.
    - sebastian/object-reflector 1.1.1 requires php ^7.0 -> your php version (8.0.2) does not satisfy that requirement.
  Problem 61
    - sebastian/recursion-context is locked to version 3.0.0 and an update of this package was not requested.
    - sebastian/recursion-context 3.0.0 requires php ^7.0 -> your php version (8.0.2) does not satisfy that requirement.
  Problem 62
    - sebastian/resource-operations is locked to version 2.0.1 and an update of this package was not requested.
    - sebastian/resource-operations 2.0.1 requires php ^7.1 -> your php version (8.0.2) does not satisfy that requirement.
  Problem 63
    - sebastian/type is locked to version 1.1.3 and an update of this package was not requested.
    - sebastian/type 1.1.3 requires php ^7.2 -> your php version (8.0.2) does not satisfy that requirement.
  Problem 64
    - theseer/tokenizer is locked to version 1.1.3 and an update of this package was not requested.
    - theseer/tokenizer 1.1.3 requires php ^7.0 -> your php version (8.0.2) does not satisfy that requirement.
  Problem 65
    - webmozart/assert is locked to version 1.6.0 and an update of this package was not requested.
    - webmozart/assert 1.6.0 requires php ^5.3.3 || ^7.0 -> your php version (8.0.2) does not satisfy that requirement.
  Problem 66
    - laravel/framework v6.18.13 requires php ^7.2 -> your php version (8.0.2) does not satisfy that requirement.
    - barryvdh/laravel-debugbar v3.2.9 requires illuminate/routing ^5.5|^6|^7 -> satisfiable by laravel/framework[v6.18.13].
    - barryvdh/laravel-debugbar is locked to version v3.2.9 and an update of this package was not requested.

and trying to do composer update

necrogami@DESKTOP-56L3JFH:/mnt/c/Users/necrogami/code/game$ composer update
Loading composer repositories with package information
Updating dependencies
Your requirements could not be resolved to an installable set of packages.

  Problem 1
    - Root composer.json requires php ^7.2 but your php version (8.0.2) does not satisfy that requirement.
  Problem 2
    - Root composer.json requires laravel/ui 1.0 -> satisfiable by laravel/ui[v1.0.0].
    - laravel/ui v1.0.0 requires php ^7.1.3 -> your php version (8.0.2) does not satisfy that requirement.
  Problem 3
    - Conclusion: don't install tcg/voyager v1.3.1 (conflict analysis result)
    - Conclusion: don't install league/flysystem[1.1.3] | install tcg/voyager[v1.3.2] (conflict analysis result)
    - Conclusion: don't install tcg/voyager v1.3.2 (conflict analysis result)
    - Conclusion: don't install laravel/framework v6.20.12 (conflict analysis result)
    - Conclusion: don't install laravel/framework v6.20.13 (conflict analysis result)
    - Conclusion: don't install laravel/framework v6.20.14 (conflict analysis result)
    - Conclusion: don't install laravel/framework v6.20.15 (conflict analysis result)
    - Conclusion: don't install laravel/framework v6.20.16 (conflict analysis result)
    - tcg/voyager[v1.4.0, ..., 1.x-dev] require laravel/ui >=1.0 -> satisfiable by laravel/ui[v1.0.0].
    - laravel/ui v1.0.0 requires php ^7.1.3 -> your php version (8.0.2) does not satisfy that requirement.
    - laravel/framework[v6.2.0, ..., v6.19.1] require php ^7.2 -> your php version (8.0.2) does not satisfy that requirement.
    - Root composer.json requires tcg/voyager ^1.3.1 -> satisfiable by tcg/voyager[v1.3.1, ..., 1.x-dev].
    - Conclusion: don't install one of league/flysystem[1.1.1], tcg/voyager[1.3.x-dev] | install league/flysystem[1.0.70] (conflict analysis result)
    - Conclusion: don't install one of league/flysystem[1.1.0], tcg/voyager[1.3.x-dev] | install league/flysystem[1.0.70] (conflict analysis result)
    - Conclusion: don't install league/flysystem 1.0.70 (conflict analysis result)
    - Conclusion: don't install one of league/flysystem[1.1.2], tcg/voyager[1.3.x-dev] (conflict analysis result)
    - laravel/framework[v6.20.0, ..., 6.x-dev] require league/flysystem ^1.1 -> satisfiable by league/flysystem[1.1.0, ..., 1.x-dev].
    - Conclusion: don't install league/flysystem 1.x-dev (conflict analysis result)
    - Root composer.json requires laravel/framework ^6.2 -> satisfiable by laravel/framework[v6.2.0, ..., 6.x-dev].

Use the option --with-all-dependencies (-W) to allow upgrades, downgrades and removals for packages currently locked to specific versions.

[Decode84]

You need to upgrade the packages. In the composer.json file you will see the required packages for the project and for its development. Update those to the correct version.

https://laravel.com/docs/7.x/upgrade

[mchekin]

@necrogami

Thank you for reporting this issue.

I just updated the project to version 8.

Currently compose install runs fine for me locally with PHP 8.0.1

The next step is to update the dockerized environment to PHP 8