./node_modules/react-router-dom/node_modules/warning/warning.js错误：ENOENT：没有此类文件或目录，请打开

Question

我安装了yarn add react-router-dom，并且在导入"react-router-dom"时显示错误

错误消息

./node_modules/react-router-dom/node_modules/warning/warning.js
Error: ENOENT: no such file or directory, open '/Users/krittiyaclark/Documents/my-portfolio-react/node_modules/react-router-dom/node_modules/warning/warning.js'

我的package.json

{
  "name": "my-portfolio-react",
  "version": "0.1.0",
  "private": true,
  "dependencies": {
    "gulp": "^3.9.1",
    "gulp-changed": "^3.2.0",
    "gulp-clean-css": "^4.0.0",
    "gulp-rename": "^1.4.0",
    "gulp-sass": "^4.0.2",
    "gulp-uglify": "^3.0.1",
    "react": "^16.7.0",
    "react-dom": "^16.7.0",
    "react-mdl": "^1.11.0",
    "react-router-dom": "^4.3.1",
    "react-scripts": "2.1.3"
  },
  "scripts": {
    "start": "react-scripts start",
    "build": "react-scripts build",
    "test": "react-scripts test",
    "eject": "react-scripts eject"
  },
  "browserslist": [
    ">0.2%",
    "not dead",
    "not ie <= 11",
    "not op_mini all"
  ]
}

请帮助！我卡了很久。 谢谢！

Answer 1

一旦遇到此问题，我就尝试停止进程浏览器中的所有Node进程。另外，请尝试从命令行工具安装软件包。

这为我解决了这个问题。

Answer 2

我刚刚使用create-react-app创建了一个应用，并像您一样添加了react-router-dom，一切正常，我唯一的区别是某些软件包版本：

{
  "name": "quicktest",
  "version": "0.1.0",
  "private": true,
  "dependencies": {
    "react": "^16.8.4",
    "react-dom": "^16.8.4",
    "react-router-dom": "^4.3.1",
    "react-scripts": "2.1.8"
  },
  "scripts": {
    "start": "react-scripts start",
    "build": "react-scripts build",
    "test": "react-scripts test",
    "eject": "react-scripts eject"
  },
  "eslintConfig": {
    "extends": "react-app"
  },
  "browserslist": [
    ">0.2%",
    "not dead",
    "not ie <= 11",
    "not op_mini all"
  ]
}

尝试运行npm update来更新它们并重新启动您的应用。

显然，react-router-dom的版本4.3.1修复了与此错误相关的某些问题（奇怪的是，您使用的版本）：

Answer 3

如果尚未运行Python 3.7.3 (v3.7.3:ef4ec6ed12, Mar 25 2019, 21:26:53) [MSC v.1916 32 bit (Intel)] on win32 Type "help", "copyright", "credits" or "license()" for more information. >>> RESTART: C:\Users\Henryk\Documents\Selenium sample project\SeleniumSampleProject.py Traceback (most recent call last): File "C:\Users\Henryk\Documents\Selenium sample project\SeleniumSampleProject.py", line 2, in <module> from selenium.webdriver.comma.keys import Keys ModuleNotFoundError: No module named 'selenium.webdriver.comma' >>> ，则需要运行它来安装所有依赖项。如果您以前安装过它们，请从您的项目目录中删除yarn install目录（.cache），然后再次运行rm -rf。