Error: Class "Drupal\datastore\Service\ImportService" not found

Hi @stefan.korn, I have created MR to resolve this issue. Please review it.

Thank You.

Do you have DKAN installed and enabled? This is a prerequisite for this module, see README.

Due to some issue with adding dependencies to projects outside Drupal, i could not add the DKAN module as a dependency in the info.yml. See https://github.com/GetDKAN/dkan/discussions/4149

We could at least add a composer.json to this module which requires DKAN, but still this will not automatically install DKAN together with this module because the dependency is not included in info.yml.

I have added composer.json to require DKAN.

Still DKAN and specifically DKAN datastore module needs to be enabled before enabling this module.