What Do I Do If the SMS-Agent Fails to Start and Error "SMS.0609 An earlier version of Agent is detected. Please exit the old Agent, uninstall the old Agent completely, and install the latest version" Is Displayed?

Symptom

During the startup of the SMS-Agent, the Agent reported that the pre-migration check failed and displayed the following message:

• Windows: SMS.0609 An earlier version of Agent is detected. Please exit the old Agent, uninstall the old Agent completely, and install the latest version.
• Linux: SMS.0609 An earlier version of Agent is detected. Please exit the old Agent, uninstall the old Agent completely, and install the latest version.

  

Possible Causes

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

Solutions

• Windows
  1. Open the Task Manager and check whether the SMS-Agent program is running.
     • If the program is running, stop it and go to step 2.
     • If the program is not running, go to step 2.

  2. Uninstall the SMS-Agent of the earlier version. For details, see How Do I Uninstall the SMS-Agent from the Source Server?
  3. Install the SMS-Agent of the latest version . For details, see Installing the SMS-Agent on Linux.
• Linux
  1. Uninstall the SMS-Agent of the earlier version. For details, see How Do I Uninstall the SMS-Agent from the Source Server?
  2. Install the SMS-Agent of the latest version . For details, see Installing the SMS-Agent on Linux.