Symptoms
- Unable to activate Node.js for a subdomain:
Another Node.js application in the subscription already uses this application root. Specify another application root that contains the document root.
- The main domain has the Node.js activated
Cause
The issue is caused by the Node.js Extension bug with ID #EXTNODEJS-234
Resolution
Until the bug is fixed, perform the following workaround:
Workaround
- Log in to Plesk.
- Go to Plesk -> Websites & Domains -> subdomain.example.com -> Node.js
-
Click the Application Root folder
/ -
Specify the subdomain folder as an Application Root folder and click the OK button:
- Click Enable Node.js button.
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