Error when installing any extensions

gexoty

Well... Florum is the latest version. Installed in a non-standard directory. (Multiple sites are running on the same server). When trying to install any extension, I get a large number of errors (I provide output).

`root@gexoty:/home/gexoty/web/adofai.gxt.su/public_html# composer require fof/upload "*"
PHP Deprecated: Return type of Symfony\Component\Console\Helper\HelperSet::getIterator() should either be compatible with IteratorAggregate::getIterator(): Traversable, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /usr/share/php/Symfony/Component/Console/Helper/HelperSet.php on line 104

Deprecated: Return type of Symfony\Component\Console\Helper\HelperSet::getIterator() should either be compatible with IteratorAggregate::getIterator(): Traversable, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /usr/share/php/Symfony/Component/Console/Helper/HelperSet.php on line 104
Deprecation Notice: Optional parameter $schema declared before required parameter $path is implicitly treated as a required parameter in /usr/share/php/JsonSchema/Constraints/UndefinedConstraint.php:62
Deprecation Notice: Optional parameter $schema declared before required parameter $path is implicitly treated as a required parameter in /usr/share/php/JsonSchema/Constraints/UndefinedConstraint.php:108
Deprecation Notice: strlen(): Passing null to parameter #1 ($string) of type string is deprecated in /usr/share/php/JsonSchema/Constraints/Constraint.php:48
Deprecation Notice: Return type of Composer\Repository\ArrayRepository::count() should either be compatible with Countable::count(): int, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /usr/share/php/Composer/Repository/ArrayRepository.php:206
Deprecation Notice: Return type of Composer\Repository\ArrayRepository::count() should either be compatible with Countable::count(): int, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /usr/share/php/Composer/Repository/ArrayRepository.php:206
Deprecation Notice: Return type of Composer\Repository\ArrayRepository::count() should either be compatible with Countable::count(): int, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /usr/share/php/Composer/Repository/ArrayRepository.php:206
Deprecation Notice: Return type of Symfony\Component\Process\Process::getIterator($flags = 0) should either be compatible with IteratorAggregate::getIterator(): Traversable, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /usr/share/php/Symfony/Component/Process/Process.php:606
Deprecation Notice: Method ReflectionParameter::getClass() is deprecated in /usr/share/php/Composer/Repository/RepositoryManager.php:130
Deprecation Notice: Method ReflectionParameter::getClass() is deprecated in /usr/share/php/Composer/Repository/RepositoryManager.php:130
Do not run Composer as root/super user! See https://getcomposer.org/root for details
Deprecation Notice: Return type of Composer\Repository\CompositeRepository::count() should either be compatible with Countable::count(): int, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /usr/share/php/Composer/Repository/CompositeRepository.php:139
Deprecation Notice: Return type of Composer\DependencyResolver\Pool::count() should either be compatible with Countable::count(): int, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /usr/share/php/Composer/DependencyResolver/Pool.php:166
Warning from https://repo.packagist.org: Support for Composer 1 is deprecated and some packages will not be available. You should upgrade to Composer 2. See https://blog.packagist.com/deprecating-composer-1-support/
./composer.json has been updated
Deprecation Notice: strlen(): Passing null to parameter #1 ($string) of type string is deprecated in /usr/share/php/JsonSchema/Constraints/Constraint.php:48
Deprecation Notice: Method ReflectionParameter::getClass() is deprecated in /usr/share/php/Composer/Repository/RepositoryManager.php:130
Deprecation Notice: Method ReflectionParameter::getClass() is deprecated in /usr/share/php/Composer/Repository/RepositoryManager.php:130
Deprecation Notice: Return type of Symfony\Component\Finder\Finder::getIterator() should either be compatible with IteratorAggregate::getIterator(): Traversable, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /usr/share/php/Symfony/Component/Finder/Finder.php:620
Deprecation Notice: Return type of Symfony\Component\Finder\Finder::count() should either be compatible with Countable::count(): int, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /usr/share/php/Symfony/Component/Finder/Finder.php:691
Deprecation Notice: Return type of Symfony\Component\Finder\Iterator\FileTypeFilterIterator::accept() should either be compatible with FilterIterator::accept(): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /usr/share/php/Symfony/Component/Finder/Iterator/FileTypeFilterIterator.php:42
Deprecation Notice: Return type of Symfony\Component\Finder\Iterator\RecursiveDirectoryIterator::getChildren() should either be compatible with RecursiveDirectoryIterator::getChildren(): RecursiveDirectoryIterator, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /usr/share/php/Symfony/Component/Finder/Iterator/RecursiveDirectoryIterator.php:81
Deprecation Notice: Return type of Symfony\Component\Finder\Iterator\RecursiveDirectoryIterator::rewind() should either be compatible with FilesystemIterator::rewind(): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /usr/share/php/Symfony/Component/Finder/Iterator/RecursiveDirectoryIterator.php:109
Deprecation Notice: Return type of Symfony\Component\Finder\Iterator\RecursiveDirectoryIterator::current() should either be compatible with FilesystemIterator::current(): SplFileInfo|FilesystemIterator|string, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /usr/share/php/Symfony/Component/Finder/Iterator/RecursiveDirectoryIterator.php:61
Deprecation Notice: Return type of Symfony\Component\Finder\Iterator\ExcludeDirectoryFilterIterator::accept() should either be compatible with FilterIterator::accept(): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /usr/share/php/Symfony/Component/Finder/Iterator/ExcludeDirectoryFilterIterator.php:55
Deprecation Notice: Return type of Symfony\Component\Finder\Iterator\ExcludeDirectoryFilterIterator::hasChildren() should either be compatible with RecursiveIterator::hasChildren(): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /usr/share/php/Symfony/Component/Finder/Iterator/ExcludeDirectoryFilterIterator.php:71
Deprecation Notice: Return type of Symfony\Component\Finder\Iterator\ExcludeDirectoryFilterIterator::getChildren() should either be compatible with RecursiveIterator::getChildren(): ?RecursiveIterator, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /usr/share/php/Symfony/Component/Finder/Iterator/ExcludeDirectoryFilterIterator.php:76
Deprecation Notice: Return type of Symfony\Component\Finder\Iterator\DateRangeFilterIterator::accept() should either be compatible with FilterIterator::accept(): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /usr/share/php/Symfony/Component/Finder/Iterator/DateRangeFilterIterator.php:41
Deprecation Notice: Return type of Symfony\Component\Finder\Iterator\PathFilterIterator::accept() should either be compatible with FilterIterator::accept(): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /usr/share/php/Symfony/Component/Finder/Iterator/PathFilterIterator.php:27
Deprecation Notice: Return type of Composer\Repository\ArrayRepository::count() should either be compatible with Countable::count(): int, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /usr/share/php/Composer/Repository/ArrayRepository.php:206
Loading composer repositories with package information
Warning from https://repo.packagist.org: Support for Composer 1 is deprecated and some packages will not be available. You should upgrade to Composer 2. See https://blog.packagist.com/deprecating-composer-1-support/
Updating dependencies (including require-dev)
Deprecation Notice: Return type of Composer\DependencyResolver\RuleSet::getIterator() should either be compatible with IteratorAggregate::getIterator(): Traversable, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /usr/share/php/Composer/DependencyResolver/RuleSet.php:114
Deprecation Notice: Return type of Composer\DependencyResolver\RuleSet::count() should either be compatible with Countable::count(): int, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /usr/share/php/Composer/DependencyResolver/RuleSet.php:99
Deprecation Notice: Return type of Composer\DependencyResolver\Decisions::current() should either be compatible with Iterator::current(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /usr/share/php/Composer/DependencyResolver/Decisions.php:155
Deprecation Notice: Return type of Composer\DependencyResolver\Decisions::next() should either be compatible with Iterator::next(): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /usr/share/php/Composer/DependencyResolver/Decisions.php:165
Deprecation Notice: Return type of Composer\DependencyResolver\Decisions::key() should either be compatible with Iterator::key(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /usr/share/php/Composer/DependencyResolver/Decisions.php:160
Deprecation Notice: Return type of Composer\DependencyResolver\Decisions::valid() should either be compatible with Iterator::valid(): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /usr/share/php/Composer/DependencyResolver/Decisions.php:170
Deprecation Notice: Return type of Composer\DependencyResolver\Decisions::rewind() should either be compatible with Iterator::rewind(): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /usr/share/php/Composer/DependencyResolver/Decisions.php:150
Deprecation Notice: Return type of Composer\DependencyResolver\Decisions::count() should either be compatible with Countable::count(): int, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /usr/share/php/Composer/DependencyResolver/Decisions.php:145
Deprecation Notice: Return type of Composer\DependencyResolver\RuleSetIterator::current() should either be compatible with Iterator::current(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /usr/share/php/Composer/DependencyResolver/RuleSetIterator.php:36
Deprecation Notice: Return type of Composer\DependencyResolver\RuleSetIterator::next() should either be compatible with Iterator::next(): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /usr/share/php/Composer/DependencyResolver/RuleSetIterator.php:46
Deprecation Notice: Return type of Composer\DependencyResolver\RuleSetIterator::key() should either be compatible with Iterator::key(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /usr/share/php/Composer/DependencyResolver/RuleSetIterator.php:41
Deprecation Notice: Return type of Composer\DependencyResolver\RuleSetIterator::valid() should either be compatible with Iterator::valid(): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /usr/share/php/Composer/DependencyResolver/RuleSetIterator.php:89
Deprecation Notice: Return type of Composer\DependencyResolver\RuleSetIterator::rewind() should either be compatible with Iterator::rewind(): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /usr/share/php/Composer/DependencyResolver/RuleSetIterator.php:70
PHP Fatal error: Uncaught ArgumentCountError: array_merge() does not accept unknown named parameters in /usr/share/php/Composer/DependencyResolver/DefaultPolicy.php:84
Stack trace:
#0 [internal function]: array_merge()
#1 /usr/share/php/Composer/DependencyResolver/DefaultPolicy.php(84): call_user_func_array()
#2 /usr/share/php/Composer/DependencyResolver/Solver.php(387): Composer\DependencyResolver\DefaultPolicy->selectPreferredPackages()
#3 /usr/share/php/Composer/DependencyResolver/Solver.php(740): Composer\DependencyResolver\Solver->selectAndInstall()
#4 /usr/share/php/Composer/DependencyResolver/Solver.php(231): Composer\DependencyResolver\Solver->runSat()
#5 /usr/share/php/Composer/Installer.php(489): Composer\DependencyResolver\Solver->solve()
#6 /usr/share/php/Composer/Installer.php(232): Composer\Installer->doInstall()
#7 /usr/share/php/Composer/Command/RequireCommand.php(248): Composer\Installer->run()
#8 /usr/share/php/Composer/Command/RequireCommand.php(205): Composer\Command\RequireCommand->doUpdate()
#9 /usr/share/php/Symfony/Component/Console/Command/Command.php(255): Composer\Command\RequireCommand->execute()
#10 /usr/share/php/Symfony/Component/Console/Application.php(934): Symfony\Component\Console\Command\Command->run()
#11 /usr/share/php/Symfony/Component/Console/Application.php(273): Symfony\Component\Console\Application->doRunCommand()
#12 /usr/share/php/Composer/Console/Application.php(281): Symfony\Component\Console\Application->doRun()
#13 /usr/share/php/Symfony/Component/Console/Application.php(149): Composer\Console\Application->doRun()
#14 /usr/share/php/Composer/Console/Application.php(113): Symfony\Component\Console\Application->run()
#15 /usr/bin/composer(62): Composer\Console\Application->run()
#16 {main}
thrown in /usr/share/php/Composer/DependencyResolver/DefaultPolicy.php on line 84

Fatal error: Uncaught ArgumentCountError: array_merge() does not accept unknown named parameters in /usr/share/php/Composer/DependencyResolver/DefaultPolicy.php:84
Stack trace:
#0 [internal function]: array_merge()
#1 /usr/share/php/Composer/DependencyResolver/DefaultPolicy.php(84): call_user_func_array()
#2 /usr/share/php/Composer/DependencyResolver/Solver.php(387): Composer\DependencyResolver\DefaultPolicy->selectPreferredPackages()
#3 /usr/share/php/Composer/DependencyResolver/Solver.php(740): Composer\DependencyResolver\Solver->selectAndInstall()
#4 /usr/share/php/Composer/DependencyResolver/Solver.php(231): Composer\DependencyResolver\Solver->runSat()
#5 /usr/share/php/Composer/Installer.php(489): Composer\DependencyResolver\Solver->solve()
#6 /usr/share/php/Composer/Installer.php(232): Composer\Installer->doInstall()
#7 /usr/share/php/Composer/Command/RequireCommand.php(248): Composer\Installer->run()
#8 /usr/share/php/Composer/Command/RequireCommand.php(205): Composer\Command\RequireCommand->doUpdate()
#9 /usr/share/php/Symfony/Component/Console/Command/Command.php(255): Composer\Command\RequireCommand->execute()
#10 /usr/share/php/Symfony/Component/Console/Application.php(934): Symfony\Component\Console\Command\Command->run()
#11 /usr/share/php/Symfony/Component/Console/Application.php(273): Symfony\Component\Console\Application->doRunCommand()
#12 /usr/share/php/Composer/Console/Application.php(281): Symfony\Component\Console\Application->doRun()
#13 /usr/share/php/Symfony/Component/Console/Application.php(149): Composer\Console\Application->doRun()
#14 /usr/share/php/Composer/Console/Application.php(113): Symfony\Component\Console\Application->run()
#15 /usr/bin/composer(62): Composer\Console\Application->run()
#16 {main}
thrown in /usr/share/php/Composer/DependencyResolver/DefaultPolicy.php on line 84
root@gexoty:/home/gexoty/web/adofai.gxt.su/public_html#`!<

Please don't scold me too much... I'm new to this and I don't understand a lot.

clarkwinkelmann

gexoty this looks like a PHP version issue.

If you can, make sure you choose the same PHP version for the command line (and therefore Composer) and the webserver. If your host does not allow you to do so, there are ways to manually invoke a specific version with Composer but this should ideally be the last resort.

Second, make sure Composer itself is up to date.

And finally the last probable reason if everything else looks good is that you might have updated your PHP version since you installed Flarum. In that case just running composer update should downloaded updated versions of Flarum and its dependencies optimized for your current PHP version.