There was a failure fetching available update data for this project. File core/modules/update/

Configure update settings for this site. Hierarchy class \Drupal\Core\Form\

Current release has been unpublished and is no longer available. File core/modules/update/

update_clear_update_disk_cache() Clears the temporary files and directories based on file age from disk.

Project's status cannot be checked. File core/modules/update/

public UpdateManagerInterface::getProjects()

Array of release history URLs that we have failed to fetch Type:

public static UpdateManagerUpdate::create(ContainerInterface

protected UpdateKernel::bootSession(Request $request)

Code required only when fetching information about available updates. File core/modules/update/update.fetch