[英]“Cannot find module 'async'” error when trying to deploy to Heroku
[英]Cannot find module 'sass' - Heroku Deploy
我刚刚通过 Heroku 部署了一个应用程序并遇到了下面列出的以下错误。 我正在使用 create-react-app。 此应用程序在开发服务器中运行良好。 我只有在尝试部署时才遇到问题。
我确保安装了sass
而不是node-sass
,因为我了解到node-sass
已被弃用。
我已经阅读了 StackOverFlow 上的多个页面,包括这一页找不到模块“sass”
但是,在阅读了所有这些答案后,我无法找到解决方案。
Failed to compile
./src/index.scss (./node_modules/css-loader/dist/cjs.js??ref--5-oneOf-6-1!./node_modules/postcss-loader/src??postcss!./node_modules/resolve-url-loader??ref--5-oneOf-6-3!./node_modules/sass-loader/dist/cjs.js??ref--5-oneOf-6-4!./src/index.scss)
Cannot find module 'sass'
Require stack:
- /app/node_modules/sass-loader/dist/utils.js
- /app/node_modules/sass-loader/dist/index.js
- /app/node_modules/sass-loader/dist/cjs.js
- /app/node_modules/loader-runner/lib/loadLoader.js
- /app/node_modules/loader-runner/lib/LoaderRunner.js
- /app/node_modules/webpack/lib/NormalModule.js
- /app/node_modules/webpack/lib/NormalModuleFactory.js
- /app/node_modules/webpack/lib/Compiler.js
- /app/node_modules/webpack/lib/webpack.js
- /app/node_modules/react-scripts/scripts/start.js
This error occurred during the build time and cannot be dismissed.
Package.json
{
"name": "create-react-app",
"version": "0.1.0",
"private": true,
"dependencies": {
"@testing-library/jest-dom": "^5.14.1",
"@testing-library/react": "^11.2.7",
"@testing-library/user-event": "^12.8.3",
"cors": "^2.8.5",
"dotenv": "^8.2.0",
"express": "^4.17.1",
"nodemailer": "^6.6.3",
"nodemailer-mailgun-transport": "^2.1.3",
"nodemon": "^2.0.12",
"react": "^17.0.2",
"react-dom": "^17.0.2",
"react-google-recaptcha": "^2.1.0",
"react-router-dom": "^6.0.2",
"react-scripts": "^4.0.3",
"web-vitals": "^1.1.2"
},
"scripts": {
"start": "react-scripts start",
"build": "react-scripts build",
"test": "react-scripts test",
"eject": "react-scripts eject",
"watch": "nodemon server.js"
},
"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"
]
},
"devDependencies": {
"sass": "^1.45.0"
}
}
如果要求并且人们认为需要更多代码,我可以发布它。
我相信这是因为您的sass
模块在开发依赖项下。 尝试改变这一点。 不幸的是,我无法发表评论,因为我的排名不够高,但这应该可以解决
"devDependencies": {
"sass": "^1.45.0"
^^应该一直在dependencies
下,
devDependencies
与开发服务器一起启动,但不与构建一起启动。
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