v1.1.5

src/plugins/MMCMQTT/store.js

@@ -110,7 +110,7 @@ export default {
      */
     end({ state, commit }) {
       console.log('MMCMQTT: 断开mqtt连接')
-      state.client?.end();
+      state.client && state.client.end();
       commit("setClient", null);
       commit("setClientId", "");
     },