Hi I have been porting my contrib to Drupal 8 for a while, and with the latest change about hook_menu_links_default being removed and menu_links.yml being added, I am stuck. Even though I have been examining core modules' code. Long story short, my link doesn't show up on /admin/config/system. Can you help me? Below are my files. tcmb.menu_links.yml --- tcmb.tcmb_settings: title: Tcmb General Settings description: 'Configure Tcmb module.' route_name: tcmb.tcmb_settings parent: system.admin_config_system weight: 1 tcmb.tcmb_settings_currency: title: 'Tcmb General Settings' description: 'Configure Tcmb module.' route_name: tcmb.tcmb_settings parent: system_admin_config_system weight: 1 tcmb.gold_settings title: 'Gold settings' description: 'Configure Tcmb gold settings.' route_name: tcmb.gold_settings parent: tcmb.admin_config_system_tcmb_settings weight: 2 tcmb.other_settings: title: 'Other settings' description: 'Configure other settings.' route_name: tcmb.other_settings parent: tcmb.admin_config_system_tcmb_settings weight: 3 tcmb.other_settings_currency: title: 'Currency Settings' description: 'Configure other settings.' route_name: tcmb.other_settings_currency parent: tcmb.tcmb_other_settings weight: 1 tcmb.other_settings_gold: title: Gold Settings description: 'Gold Settings' route_name: tcmb.other_settings_gold parent: tcmb.tcmb_other_settings weight: 2 tcmb.routing.yml --- tcmb.tcmb_settings: path: '/admin/config/system/tcmb-settings' defaults: _form: 'Drupal\tcmb\TcmbCurrencySettingsForm' _title: 'Tcmb General Settings' requirements: _permission: 'administer Tcmb' tcmb.gold_settings: path: '/admin/config/system/tcmb-settings/gold-settings' defaults: _form: 'Drupal\tcmb\TcmbGoldSettingsForm' requirements: _permission: 'administer Tcmb' tcmb.other_settings: path: '/admin/config/system/tcmb-settings/other-settings' defaults: _form: 'Drupal\tcmb\TcmbOtherSettingsForm' requirements: _permission: 'administer Tcmb' tcmb.other_settings_currency: path: '/admin/config/system/tcmb-settings/other-settings/currency' defaults: _form: 'Drupal\tcmb\TcmbOtherSettingsForm' requirements: _permission: 'administer Tcmb' tcmb.other_settings_gold: path: '/admin/config/system/tcmb-settings/other-settings/gold' defaults: _form: 'Drupal\tcmb\TcmbOtherGoldSettingsForm' requirements: _permission: 'administer Tcmb' Regards, mto