Search Engine: Elastic

Article ID: 131586, created on Oct 10, 2017, last review on Oct 12, 2017

  • Applies to:
  • APS Connect


The following error is shown when trying to run the preview via APS Connect Portal in Development Mode:

    Request POST /app returned code 404 Error: ApplicationUnknownError Message: Tunnel not found


Such error is shown if your tunnel has been expired or closed.


Please make sure that ngrok tunnel is up and running, and the external link is accessible.

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