ftw.upgrade.exceptions.UpgradeStepConfigurationError: The profile "mypackage:default" needs to be registered before registering its upgrade step directory.

[idgserpro]

Following https://github.com/4teamwork/ftw.upgrade#setting-up-an-upgrade-directory doesn't work in a Plone 5.2 installation. I get ftw.upgrade.exceptions.UpgradeStepConfigurationError: The profile "mypackage:default" needs to be registered before registering its upgrade step directory.

Debugging the code, listProfiles is always empty, thus raising the exception.

ftw.upgrade/ftw/upgrade/directory/zcml.py

Line 59 in 00d541f

if profile not in _profile_registry.listProfiles():

Is any other configuration or directive missing from the docs or is it a bug?