Help Center/ Server Migration Service/ FAQs/ Error Codes and Solutions/ SMS.0609 An Older Version of Agent Is Detected. Please Exit the Current Program, Uninstall the Old Agent Completely, and Install the Newest One
Updated on 2025-11-06 GMT+08:00

SMS.0609 An Older Version of Agent Is Detected. Please Exit the Current Program, Uninstall the Old Agent Completely, and Install the Newest One

Symptom

During the startup of the SMS-Agent on Linux, the Agent reported that the migration pre-check failed and returned the message "SMS.0609 An older version of Agent is detected. Please exit the current program, uninstall the old Agent completely, and install the newest one."

Possible Causes

If an earlier version of the SMS-Agent is not uninstalled or completely uninstalled, files cannot be completely replaced and the latest version cannot be installed correctly.

Solution

  1. Uninstall the earlier version of the SMS-Agent. For details, see How Do I Uninstall the SMS-Agent from the Source and Target Servers After the Migration Is Complete?
  2. Install the latest version of the SMS-Agent. For details, see Installing the SMS-Agent on Linux.