fix bug

.env

@@ -1 +0,0 @@
-VUE_CLI_BABEL_TRANSPILE_MODULES = true

.env.development

@@ -1 +1,8 @@
 VUE_APP_BASE_API = '/api'
+
+// With this configuration, vue-cli uses babel-plugin-dynamic-import-node
+// It only does one thing by converting all import() to require()
+// So that all asynchronous components can be import synchronously using this plugin
+// This configuration can significantly increase the speed of hot updates when you have a large number of pages
+// https://github.com/vuejs/vue-cli/blob/dev/packages/@vue/babel-preset-app/index.js
+VUE_CLI_BABEL_TRANSPILE_MODULES = true

package.json

@@ -64,6 +64,7 @@
     "xlsx": "^0.11.16"
   },
   "devDependencies": {
+    "@babel/core": "7.0.0",
     "@babel/register": "7.0.0",
     "@vue/cli-plugin-babel": "3.0.5",
     "@vue/cli-plugin-eslint": "3.0.5",