Troubleshooting Tip: FortiSOAR upgrade failure due to missing Python yaml module

Description

This article describes an issue where the FortiSOAR upgrade fails due to a missing Python dependency.

During the upgrade process, the following error may be observed in the logs:

ModuleNotFoundError: No module named 'yaml'

This issue prevents the upgrade from completing successfully.

Scope

FortiSOAR.

Solution

To resolve the issue, install the required Python module and retry the upgrade:

1. Install the required Python module by running the following command:

# yum install -y python3-pyyaml

2. After installing the module, rerun the upgrade to complete the process.

By following these steps, the issue should be resolved and the FortiSOAR should be successfully upgraded.