The Workbench Jobs feature is not configured correctly

Workbench

launcher

Published

January 29, 2026

Abstract

Troubleshooting issues with the “Workbench Jobs Feature” in Posit Workbench

Description

In Workbench versions between 2022.07 and 2022.12, the following error might present when accessing Workbench sessions:

This error results from an incorrectly specified launcher-sessions-callback-address in the /etc/rstudio/rserver.conf configuration file.

Solution

Set the value of launcher-sessions-callback-address to the URL that you type into the web browser to access the Posit Workbench user interface. This will need to include any port numbers that your server listens on if these aren’t default ports for HTTP or HTTPS. For example:

with TLS, default HTTPS port

/etc/rstudio/rserver.conf

launcher-sessions-callback-address=https://workbench.example.com

without TLS, non-default HTTP port

/etc/rstudio/rserver.conf

launcher-sessions-callback-address=http://workbench.example.com:8787

Upgrading to a supported version of Workbench is recommended.

Workbench Jobs require an Advanced tier license.

If you’re still having issues, you can reach out to Support by opening a ticket.