Redmine

Hello,

I just installed Redmine and after many problems I finally succeeded to log in to localhost:3000 as admin.
I then created another administrator user xyzdragon.
I also created a Role in Administration->Roles and permissions->New Role called "Project Administrator", who can basically do everything, this includes "Add issues".
Next I created a project "Todo" and added user xyzdragon to it for the role of project administrator.
But if I then switch to that newly created project while being logged in as xyzdragon, I only see the tabs:

    Overview
    Activity
    Issues
    Gantt
    Calendar
    Documents
    Files
    Settings

There is no "New Issue" tab, like I know from another public redmine Installation.
What did I miss?

I also tried granting the predefined roles "Non member" and "Anonymous" the rights to add and edit issues, but to no avail.

Thank you for your help.

Edit:
When trying to access http://localhost:3000/projects/todo/issues/new directly, I get:
'No tracker is associated to this project. Please check the Project settings.'

This also gives me clues, what to do:
Administration->Statuses->Add Status: open, closed
Administration->Trackers->Add Tracker
Administration->Trackers->Workflows