相关疑难解决方法(0)

"proxy": "http://localhost:6000" 当我添加 package.json时，我在项目中遇到了这个错误。

这是纱线启动后的错误响应。

选项对象无效。开发服务器已使用与 API 架构不匹配的选项对象进行初始化。

• options.allowedHosts[0] 应该是一个非空字符串。error 命令失败，退出代码 1。 info 请访问 https://yarnpkg.com/en/docs/cli/run以获取有关此命令的文档。

但当我删除后一切都很好"proxy": "http://localhost:6000"。

这是我的 package.json 上的：

{
  "name": "client",
  "version": "0.1.0",
  "private": true, 
  "dependencies": {
    "@material-ui/core": "^4.12.3",
    "@testing-library/jest-dom": "^5.16.1",
    "@testing-library/react": "^12.1.2",
    "@testing-library/user-event": "^13.5.0",
    "axios": "^0.24.0",
    "moment": "^2.29.1",
    "react": "^17.0.2",
    "react-dom": "^17.0.2",
    "react-file-base64": "^1.0.3",
    "react-redux": "^7.2.6",
    "react-scripts": "5.0.0",
    "redux": "^4.1.2",
    "redux-thunk": "^2.4.1",
    "web-vitals": "^2.1.2"
  },
  "scripts": {
    "start": "react-scripts start",
    "build": "react-scripts build",
    "test": "react-scripts test",
    "eject": "react-scripts eject"
  },
  "eslintConfig": {
    "extends": [ …