unmet dependencies

if bartik theme disabled
drush en private_message

Drupal\Core\Config\UnmetDependenciesException: Configuration objects provided by private_message have unmet dependencies: block.block.privatemessageinbox (bartik) in [error]
/var/www/html/core/lib/Drupal/Core/Config/UnmetDependenciesException.php:98
Stack trace:
#0 /var/www/html/core/lib/Drupal/Core/Config/ConfigInstaller.php(469): Drupal\Core\Config\UnmetDependenciesException::create('private_message', Array)
#1 /var/www/html/core/lib/Drupal/Core/Extension/ModuleInstaller.php(141): Drupal\Core\Config\ConfigInstaller->checkConfigurationToInstall('module', 'private_message')
#2 /var/www/html/core/lib/Drupal/Core/ProxyClass/Extension/ModuleInstaller.php(83): Drupal\Core\Extension\ModuleInstaller->install(Array, true)
#3 phar:///usr/local/bin/drush/commands/core/drupal/environment.inc(131): Drupal\Core\ProxyClass\Extension\ModuleInstaller->install(Array, true)
#4 phar:///usr/local/bin/drush/commands/core/drupal/environment.inc(198): drush_module_install(Array)
#5 phar:///usr/local/bin/drush/commands/pm/pm.drush.inc(1167): drush_module_enable(Array)
#6 phar:///usr/local/bin/drush/includes/command.inc(422): drush_pm_enable('private_message')
#7 phar:///usr/local/bin/drush/includes/command.inc(231): _drush_invoke_hooks(Array, Array)
#8 phar:///usr/local/bin/drush/includes/command.inc(199): drush_command('private_message')
#9 phar:///usr/local/bin/drush/lib/Drush/Boot/BaseBoot.php(67): drush_dispatch(Array)
#10 phar:///usr/local/bin/drush/includes/preflight.inc(66): Drush\Boot\BaseBoot->bootstrap_and_dispatch()
#11 phar:///usr/local/bin/drush/includes/startup.inc(458): drush_main()
#12 phar:///usr/local/bin/drush/includes/startup.inc(365): drush_run_main(false, '/', 'Phar detected. ...')
#13 phar:///usr/local/bin/drush/drush(114): drush_startup(Array)
#14 /usr/local/bin/drush(10): require('phar:///usr/loc...')
#15 {main}