Plesk Migrator fails to copy website data: unknown encoding: cp65001

Symptoms

• Migration fails to copy website data:

  PLESK_INFO: Failed to copy web files for subscription 'example.com'
  Migration tools tried to perform operation in 3 attempts: unknown encoding: cp65001

• Error in Plesk Migrator log %plesk_dir%var\modules\panel-migrator\sessions\sessionid\debug.log :

  CONFIG_TEXT: Exception:
  Traceback (most recent call last):
  ...
  File "C:\Program Files (x86)\Plesk\admin\plib\modules\panel-migrator\backend\lib\python\parallels\core\utils\common\__init__.py", line 440, in safe_string_repr
  s = str(s).decode(encoding)
  LookupError: unknown encoding: cp65001

Cause

Plesk Migrator bug PMT-4448 which will be fixed in future updates.

Resolution

1. Connect to the target server via RDP

2. Open PowerShell via Start > Windows PowerShell.

3. Download the quick fix from the article attachments:

   PS [Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12

   PS Invoke-WebRequest -URI https://support.plesk.com/hc/en-us/article_attachments/12377109034007/__init__.zip -OutFile __init__.zip

4. Unpack the downloaded fix:

   PS Add-Type -Assembly "System.IO.Compression.FileSystem"

   PS [System.IO.Compression.ZipFile]::ExtractToDirectory(($pwd).path + "\__init__.zip", ($pwd).path)

5. Create a backup of the %plesk_dir%admin\plib\modules\panel-migrator\backend\lib\python\parallels\core\utils\common\__init__.py file:

   PS Move-Item -Path $env:plesk_dir\admin\plib\modules\panel-migrator\backend\lib\python\parallels\core\utils\common\__init__.py $env:plesk_dir\admin\plib\modules\panel-migrator\backend\lib\python\parallels\core\utils\common\__init__.py.bkp

6. Copy the fixed __init__.py file to the %plesk_dir%admin\plib\modules\panel-migrator\backend\lib\python\parallels\core\utils\common folder:

   PS Move-Item -Path .\__init__.py $env:plesk_dir\admin\plib\modules\panel-migrator\backend\lib\python\parallels\core\utils\common\

7. Re-sync the affected subscription(s)