I kept getting the fowing error when running sushi despite having all dependencies installed:
Structure Definition http://hl7.no/fhir/StructureDefinition/no-basis-PractitionerRole is missing a snapshot. Snapshot is required for import.
It isn’t really helpful in identifying what it is looking for that it cannot find or where it would expect to find it.
My problem was that one dependency had to be installed and extracted manually and then replace the downloaded one. A better error message might have pointet me into finding that the downloaded version was incomplete and gotten me asking the right question. In stead it just confused me for a couple of days until I eventually stumbled on the solution.