Issue with spatial module importing

[ziudeso]

Hi, I've setup ckan and all other plugins correctly, this one gives me the following error:

ModuleNotFoundError: No module named 'ckanext.spatial.model'

To install the spatial module I've simply done;

RUN ckan-pip install -e "git+https://github.com/ckan/ckanext-spatial.git#egg=ckanext-spatial" && \
    ckan-pip install -r ${SRC_DIR}/ckanext-spatial/requirements.txt

In particular the error is thrown by this plugin: dcatapit_csw_harvester despite having imported all of these:
`spatial_metadata spatial_query csw_harvester