Migration of a subscription fails: some files/attrs were not transferred

Symptoms

Migration of a subscription fails with the following error message in Plesk Migrator:

PLESK_INFO: Failed to copy '/var/www/web/files' from the source server 'confixx' (203.0.113.2) to target Plesk server
<...>
exit code: 23
stdout:
stderr:
rsync: opendir "/var/www/web/files/folder" failed: Permission denied (13)
rsync: send_files failed to open "/var/www/web/files/file1.jpg": Permission denied (13)
rsync: send_files failed to open "/var/www/web/files/file2.jpg": Permission denied (13)
rsync: send_files failed to open "/var/www/web/files/file3.jpg": Permission denied (13)
rsync error: some files/attrs were not transferred (see previous errors) (code 23) at main.c(1650) [generator=3.1.2]

Cause

Insufficient permissions on some files inside the subscription directory.

Resolution

1. Connect to the source server via SSH.

2. Set the following permissions on the files/directories that are mentioned in the error message in Plesk Migrator:

   • 644 for files

     # chmod 644 /var/www/web/files/file1.jpg /var/www/web/files/file2.jpg /var/www/web/files/file3.jpg

   • 755 for directories

     # chmod 755 /var/www/web/files/folder

3. Re-sync website files.