机场直播和无人机直播快速开启和关闭时报错问题修改

src/views/demo/workmanagement/flightoperation/src/AirportLive.vue

@@ -154,8 +154,10 @@
   };
   // 销毁视频控件
   onBeforeUnmount(() => {
-    player.dispose();
-    player = null;
+    if(player){
+      player.dispose();
+      player = null;
+    }
   });
 </script>
 <style lang="less" scoped>

src/views/demo/workmanagement/flightoperation/src/LivePreview.vue

@@ -286,8 +286,10 @@
   };
   // 销毁视频控件
   onBeforeUnmount(() => {
-    player.dispose();
-    player = null;
+    if(player){
+      player.dispose();
+      player = null;
+    }
   });
 </script>
 <style lang="less" scoped>