Project Members
Sign in with project-admin, enter into one project (e.g. demo-namespace), then select Project Settings → Project Members.
Click Invite member, select the user click + in the pop-up window, and invite the member to join the project. For example, in the screenshot below, the ws-admin will be invited to the current project and is granted the that created in Member Role.
So far, we have successfully invite a new member to a project and grant role as .