[MapProxy] error message in seeding after upgrade

[lionel bargeot]

Hi,

I have a problem after an upgrade 9.1 -> 1.0.0 with seeding.
I upgraded mapproxy in a virtualenv with this command  :

pip install -U --no-deps MapProxy

I configured tasks in a seed.yaml file an then tryed to run
mapproxy-seed -f mapproxy.yaml -s seed.yaml --seed my_cache
I got the error message :

No handlers could be found for logger "mapproxy.config.loader"

Is there something missing in a config file ?

Thanks for help

Lionel