修复报错

src/components/app-mob-menu-default-view/app-mob-menu-default-view.vue

@@ -185,7 +185,9 @@ export default class AppMobMenuDefaultView extends Vue {
      * @memberof AppMobMenuDefaultView
      */
     public destroyed() {
-        this.counterServide.destroyCounter();
+        if(this.counterServide){
+            this.counterServide.destroyCounter();
+        }
     }
 
     /**