When installing Fidesic for GP on a Citrix/terminal server, the installer displays the error "Another installation is in progress. You must complete that installation before continuing this one."
Problem
When installing Fidesic for GP on a Citrix/terminal server, the installer displays the error "Another installation is in progress. You must complete that installation before continuing this one."
Root Cause
A zombie msiexec.exe process is running in the background from a previous installation attempt. This process prevents new installations from starting.
Solution
- Open Task Manager
- Look for any
msiexec.exeprocesses in the Details tab - End all
msiexec.exeprocesses - If processes cannot be terminated, restart the server
- Retry the installation
Prevention
Always ensure previous installations complete fully or are properly cancelled before starting new installations on shared server environments.