因为没有在dataSource上写schema

schema: {          model: {                id: "DeptId",                fields: {                    CompanyId: { editable: false, nullable: true },                    DeptId: { editable: false, nullable: true },                    DeptName: { editable: true, nullable: true, type: "string", validation: { required: false } },                        }                 }          }