Error with Placement and oslo_config

Hello, I'm deploying the Wallaby release, after configuring Placement, I have this error when running placement-status upgrade check File "/usr/lib/python3/dist-packages/oslo_config/cfg.py", line 2543, in find_file raise NotInitializedError() oslo_config.cfg.NotInitializedError: call expression on parser has not been invoked It seems like migrations have been made, connection to database seems ok from the placement.conf file. I added this environment variable : OS_PLACEMENT_DATABASE__CONNECTION=mysql+pymysql://placement:placementPASSWD@controller1/placement (With the right password) I don't understand this error as I used the installation guide to install Placement. Do you know where I could dig ? Thanks a lot !