31 uses of REQUIREMENT_ERROR

aggregator_requirements in core/modules/aggregator/aggregator.install
Implements hook_requirements().
color_requirements in core/modules/color/color.install
Implements hook_requirements().
comment_requirements in core/modules/comment/comment.install
Implements hook_requirements().
content_moderation_requirements in core/modules/content_moderation/content_moderation.install
Implements hook_requirements().
DbUpdateController::handle in core/modules/system/src/Controller/DbUpdateController.php
Returns a database update page.
drupal_check_module in core/includes/install.inc
Checks a module's requirements.
drupal_verify_profile in core/includes/install.inc
Verifies that all dependencies are met for a given installation profile.
experimental_module_requirements_test_requirements in core/modules/system/tests/modules/experimental_module_requirements_test/experimental_module_requirements_test.install
Implements hook_requirements().
hook_requirements in core/lib/Drupal/Core/Extension/module.api.php
Check installation requirements and do status reporting.
image_requirements in core/modules/image/image.install
Implements hook_requirements() to check the PHP GD Library.
install_check_requirements in core/includes/install.core.inc
Checks installation requirements and reports any errors.
install_check_translations in core/includes/install.core.inc
Checks installation requirements and reports any errors.
install_display_requirements in core/includes/install.core.inc
Displays installation requirements.
layout_discovery_requirements in core/modules/layout_discovery/layout_discovery.install
Implements hook_requirements().
media_requirements in core/modules/media/media.install
Implements hook_requirements().
menu_link_content_requirements in core/modules/menu_link_content/menu_link_content.install
Implements hook_requirements().
migrate_drupal_multilingual_requirements in core/modules/migrate_drupal_multilingual/migrate_drupal_multilingual.install
Implements hook_requirements().
ProjectSecurityRequirement::getDateEndRequirement in core/modules/update/src/ProjectSecurityRequirement.php
Gets the security coverage requirement based on an end date.
ProjectSecurityRequirement::getVersionEndRequirement in core/modules/update/src/ProjectSecurityRequirement.php
Gets the requirements based on security coverage until a specific version.
requirements1_test_requirements in core/modules/system/tests/modules/requirements1_test/requirements1_test.install
Implements hook_requirements().
simpletest_requirements in core/modules/simpletest/simpletest.install
Implements hook_requirements().
system_requirements in core/modules/system/system.install
Implements hook_requirements().
taxonomy_requirements in core/modules/taxonomy/taxonomy.install
Implements hook_requirements().
testing_requirements_requirements in core/profiles/testing_requirements/testing_requirements.install
Implements hook_requirements().
unicode_requirements in core/includes/unicode.inc
Moves unicode_requirements() logic to system_requirements().
update_page_top in core/modules/update/update.module
Implements hook_page_top().
update_script_test_requirements in core/modules/system/tests/modules/update_script_test/update_script_test.install
Implements hook_requirements().
update_system_schema_requirements in core/includes/update.inc
Returns whether the minimum schema requirement has been satisfied.
workspaces_requirements in core/modules/workspaces/workspaces.install
Implements hook_requirements().
_update_cron_notify in core/modules/update/update.fetch.inc
Performs any notifications that should be done once cron fetches new data.
_update_requirement_check in core/modules/update/update.install
Fills in the requirements array.

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