add

src/views/ItemInformation/components/Dialog-item.vue

@@ -233,7 +233,7 @@
               categoryRelationPOList:
                 this.$refs.productionDeviceRef.datasource.map((item) => {
                   return {
-                    mainCategoryId: item.id
+                    categoryId: item.id
                   };
                 })
             };