Create form for domain object with multiselect Enum field fails with 'Property xxx is type-mismatched'
问题 I am using Grails 4.0.4 w/ GORM 7.0.7.RELEASE The database I am using is MongoDB I can successfully run the application and navigate to the create form for the domain class. I can select the value for the singleton field someOtherEnum . I can multiselect values for the categories field. When I submit the form, however, I get this message: 'Property categories is type-mismatched'. I used this approach based on the answers to another question posted here, but it's not working for me. I am not