An error is displayed in the NodeJs menu: Node.js application in the subscription already uses this application root

Symptoms

• The following is displayed at Domains > example.com > NodeJS:

  PLESK_ERROR: Another Node.js application in the subscription already uses this application root. Specify another application root that contains the document root.

• NodeJS extension version 2.3.4 is installed.

Cause

Plesk bug: #EXTNODEJS-310 "Another Node.js application in the subscription already uses this application root."

Fixed in:

• NodeJS 2.3.5 07 July 2023.

Resolution

• Update NodeJS Extension to the latest version.

If the update is not possible for some reason, as it's a cosmetic error without a real impact, it can be safely ignored.