--- title: "Error: 'Not supported' when running Pharos Reports." slug: "error-not-supported-when-running-pharos-reports" updated: 2024-04-02T13:01:29Z published: 2024-04-02T13:01:29Z canonical: "kb.pharos.com/error-not-supported-when-running-pharos-reports" --- > ## Documentation Index > Fetch the complete documentation index at: https://kb.pharos.com/llms.txt > Use this file to discover all available pages before exploring further. # Error: 'Not supported' when running Pharos Reports. ### Cause: The error message is not generated by Pharos. Probable cause of the problem is an "old" DLL affecting the client PC, which Pharos is making a call to. That DLL can't handle the call, hence the error "Not supported". --- ### Solution: Uninstall the other application that installs MDAC or Crystal Runtime files. Then reinstall the Pharos Reports application.