Seeking help for Keystone Error while assign_role_to_user for a Project in Openstack SDK

Hi Team, I am using the Openstack SDK in my django rest api project where I have to create a new project and assign various users with different roles to that project in openstack. However, while adding a user to a project I am getting the following error. [image: image.png] Complete details of the steps I followed that resulted in this error are in the text file attached with this email. Kindly help me resolve this issue. Your support is highly appreciated. -- Thanks and Regards, Ayush Jaiswal