我已经使用React有一段时间了，成功地使用npm start查看了我的应用程序是如何运行的。
在某个时候，我的应用程序在http://localhost:3000/停止加载。
我在候机厅看到这个：

Compiled successfully!

You can now view contact-list in the browser.

  Local:            http://localhost:3000
  On Your Network:  http://192.168.1.16:3000

Note that the development build is not optimized.
To create a production build, use npm run build.

在我的Chrome浏览器中，它看起来像是一直在加载，没有显示任何错误。
我试过删除浏览器缓存。
我试着检查http://192.168.1.16:3000。它也只是永久加载。
我在同一个端口上尝试了另一个项目，它工作正常，所以看起来不像是端口的问题。
这是我的包裹json：

{
  "name": "contact-list",
  "version": "0.1.0",
  "private": true,
  "dependencies": {
    "@testing-library/jest-dom": "^5.11.10",
    "@testing-library/react": "^11.2.6",
    "@testing-library/user-event": "^12.8.3",
    "bootstrap": "^5.1.3",
    "react": "^18.1.0",
    "react-dom": "^17.0.2",
    "react-router-dom": "^6.3.0",
    "react-scripts": "4.0.3",
    "web-vitals": "^1.1.1"
  },
  "scripts": {
    "start": "react-scripts start",
    "build": "react-scripts build",
    "test": "react-scripts test",
    "eject": "react-scripts eject"
  },
  "eslintConfig": {
    "extends": [
      "react-app",
      "react-app/jest"
    ]
  },
  "browserslist": {
    "production": [
      ">0.2%",
      "not dead",
      "not op_mini all"
    ],
    "development": [
      "last 1 chrome version",
      "last 1 firefox version",
      "last 1 safari version"
    ]
  }
}

有人知道哪里出了问题吗？