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HubSpot Sales for Outlook install error: 'Application cannot be started. Contact the application vendor.'

Last updated: June 20, 2017

Available For:

Marketing: N/A
Sales: Free, Professional

When attempting to install HubSpot Sales, you may encounter an "Application cannot be started. Contact the application vendor" error message. 

To resolve this error:

  • Uninstall the HubSpot Sales plugin following the instructions here.
  • Open the Task Manager (CTRL+ALT+DEL) and end the SidekickTrayWPF.exe process.
  • Navigate to Control Panel > Programs and Features and click to uninstall the Sidekick For Windows application.
  • Go to https://dl.getsidekick.com/trayapp/setup.exe, download the tray app, and run the file to reinstall.

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