我正在使用 node js 开发一个应用程序，它在本地运行良好，但在我尝试将其上传到 heroku 时崩溃，它说 cat find dotenv

Question

i am developing an app with node js , it works perfectly locally but crashes anytime i try to upload it to heroku,it says Error: Cannot find module 'dotenv.i have installed it serval times and also updated my package but the problem continues, this is my package.json { "name": "myapp", "description": "a really cool app", "version": "1.0.0", "private": true, "scripts": { "start": "node ./bin/www" }, "engines": { "node": "10.16.3", "npm": "6.13.4" }, "dependencies": { "@mapbox/mapbox-sdk": "^0.9.0", "body-parser": "^1.19.0", "cookie-parser": "~1.4.4", "debug": "~4.1.1", "ejs": "~3.0.1", "ejs-mate": "^3.0.0", "express": "^4.17.1", "express-session": "^1.17.0", "faker": "^4.1.0", "http-errors": "~1.7.3", "method-override": "^3.0.0", "mongoose": "^5.8.1", "mongoose-paginate": "^5.0.3", "morgan": "~1.9.1", "passport": "^0.4.1", "passport-local": "^1.0.0", "passport-local-mongoose": "^5.0.1", "serve-favicon": "^2.5.0" }, "devDependencies": { "dotenv": "^8.2.0", "locus": "^2.0.4" } } this is m y Procfile web: node app.js this is my git ignore file /node_modules .DS_Store /*.env

Answer 1

Try movin dotenv from 'devDependencies' to 'dependencies'

Anything that is needed to actually run your app (lets call it "in production"), should be in 'dependencies'.

Anything that you may need while eg testing can be installed to 'devDependencies'