The "plesk repair" utilities show warnings on debian-based OSes: Cannot find deb-archive for package

Symptoms

• The command plesk repair installation shows the following warnings, when run on debian-based OSes (Debian or Ubuntu):

  CONFIG_TEXT: WARNING:Skip fixing 'psa-updates': Cannot find deb-archive for package psa-updates (18.0-v.ubuntu.18.04+p18.0.20.0+t191009.1747)
  WARNING:Skip fixing 'psa-vhost': Cannot find deb-archive for package psa-vhost (18.0-v.ubuntu.18.04+p18.0.24.0+t200207.1734)
  WARNING:Skip fixing 'psa-watchdog': Cannot find deb-archive for package psa-watchdog (18.0-v.ubuntu.18.04+p18.0.26.0+t200402.1825)

• The command plesk repair fs shows the following erros when running on debian-based OSes (Debian or Ubuntu):

  CONFIG_TEXT: error There are incorrect permissions on some items: /var/www/vhosts
  failed Repairing incorrect permissions fsmng failed: ERROR:Cannot find deb-archive for package plesk-web-hosting (18.0-v.ubuntu.18.04+p18.0.28.0+t200602.2255)

Cause

This is Plesk bug ID #PPPM-11579 that will be fixed in future Plesk updates.

Resolution

These messages can be safely ignored.