缺少产线时间冲突爆红问题

klp-ui/babel.config.js

@@ -1,13 +1,13 @@
 module.exports = {
   presets: [
-    // https://github.com/vuejs/vue-cli/tree/master/packages/@vue/babel-preset-app
     '@vue/cli-plugin-babel/preset'
   ],
-  'env': {
-    'development': {
-      // babel-plugin-dynamic-import-node plugin only does one thing by converting all import() to require().
-      // This plugin can significantly increase the speed of hot updates, when you have a large number of pages.
-      'plugins': ['dynamic-import-node']
+  plugins: [
+    '@babel/plugin-proposal-optional-chaining'
+  ],
+  env: {
+    development: {
+      plugins: ['dynamic-import-node']
     }
   }
 }