Problems starting toolbox

[Mastomaki]

After installing developer requirements (python -mpip install -r dev-requirements.txt) I get the following error when starting the toolbox:

Traceback (most recent call last):
  File "/home/jube/anaconda3/envs/spinetb08/bin/spinetoolbox", line 5, in <module>
    from spinetoolbox.main import main
  File "/home/jube/data/spine/Spine-Toolbox/spinetoolbox/main.py", line 33, in <module>
    from spine_items import resources_icons_rc  # pylint: disable=unused-import
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/jube/data/spine/Spine-Toolbox/src/spine-items/spine_items/__init__.py", line 65, in <module>
    item_factories, executable_items, item_specification_factories = _factories_and_executable_items()
                                                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/jube/data/spine/Spine-Toolbox/src/spine-items/spine_items/__init__.py", line 19, in _factories_and_executable_items
    from .data_connection.data_connection_factory import DataConnectionFactory
  File "/home/jube/data/spine/Spine-Toolbox/src/spine-items/spine_items/data_connection/data_connection_factory.py", line 19, in <module>
    from .widgets.add_data_connection_widget import AddDataConnectionWidget
  File "/home/jube/data/spine/Spine-Toolbox/src/spine-items/spine_items/data_connection/widgets/add_data_connection_widget.py", line 14, in <module>
    from spinetoolbox.widgets.add_project_item_widget import AddProjectItemWidget
  File "/home/jube/data/spine/Spine-Toolbox/spinetoolbox/widgets/add_project_item_widget.py", line 21, in <module>
    from ..project import ItemNameStatus
  File "/home/jube/data/spine/Spine-Toolbox/spinetoolbox/project.py", line 26, in <module>
    from .project_item.logging_connection import LoggingConnection, LoggingJump
  File "/home/jube/data/spine/Spine-Toolbox/spinetoolbox/project_item/logging_connection.py", line 14, in <module>
    from spinedb_api.filters.tool_filter import TOOL_FILTER_TYPE
ModuleNotFoundError: No module named 'spinedb_api.filters.tool_filter'

[Mastomaki]

I tried to start a wrong version of the toolbox!