Cannot import site to Plesk using Site Import extension: FTP credentials are incorrect: please specify valid FTP login and password

Symptoms

• Unable to import website using Site Import extension at Domains > example.com > Website Importing:

  PLESK_ERROR: Error
  Connecting to the source domain
  Failed to connect to source domain by FTP: FTP credentials are incorrect: please specify valid FTP login and password.

• Website example.com is used as Source domain name:

  

Cause

The same domain exists on the destination server and the Site Import extension resolves it locally, so the connection does not go to the source server and instead FTP credentials are checked on the local server.

Resolution