Troubleshooting Errors

About the Troubleshooting Errors category (1)
Hubspot error I get when I do request for integration permissions (2)
Error: Field 'Board' is a lookup/reference field type, but (2)
I get the error "Mapping for field Assignee is required. Please add it before proceeding." (2)
I keep getting an error: "Mappings for fields Board and List are required. Please add them before proceeding." (2)
Error while importing Companies with lookup field company ID into Hubspot (2)
Error importing cards into Trello (2)
Error while importing into Hubspot Product library (2)