ionic serve命令错误和离子地址命令为空结果

Question

我有这个离子服务命令问题我刚收到此错误嗯，我们无法访问此页面当我尝试查看<的结果时强>离子地址命令，我什么都看不到。我不知道这里有什么问题。请有人帮忙。感谢

Answer 1

"scripts": {
   "build": "ionic-app-scripts build",
"watch": "ionic-app-scripts watch",
"serve:before": "watch",
"emulate:before": "watch",
"deploy:before": "build",
"build:before": "build",
"run:before": "watch"

  }

确保package.json（内部脚本）具有上述所有行........