运行节点时找不到模块“请求”

Question

I'm trying to run a nodejs file, but whenever I run it, I get the error:

Error: Cannot find module 'request'
at Function.Module._resolveFilename (internal/modules/cjs/loader.js:580:15)
at Function.Module._load (internal/modules/cjs/loader.js:506:25)
at Module.require (internal/modules/cjs/loader.js:636:17)
at require (internal/modules/cjs/helpers.js:20:18)
at Object.<anonymous> (C:\Users\MYUSERNAME\Documents\njtest\web-api-auth-examples-master\authorization_code\app.js:11:15)
at Module._compile (internal/modules/cjs/loader.js:688:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:699:10)
at Module.load (internal/modules/cjs/loader.js:598:32)
at tryModuleLoad (internal/modules/cjs/loader.js:537:12)
at Function.Module._load (internal/modules/cjs/loader.js:529:3)

I had a similar error with a different module, and all I did was download it and the error went away, but I downloaded the request module, and I'm still getting the error. I have all the files from here downloaded and in the file path C:\\Users\\USer\\Documents\\njtest, and it shows the Request Master folder. This is for trying to do authentication with the spotify API by the way. Any ideas on to why it's still giving the error? I'm guessing maybe the file needs to be somewhere else? Thanks!

Answer 1

Fwiw, I found that my request package was declared in devDependencies in package.json automatically and when I declared it in the dependencies object instead, this resolved the issue for me.

If yours is in dependencies already, that may not be your issue, but it is worth checking.

Regarding the difference in the two objects, devDependencies and dependencies :

The difference between these two, is that devDependencies are modules which are only required during development, while dependencies are modules which are also required at runtime.

( https://medium.com/@dylanavery720/npmmmm-1-dev-dependencies-dependencies-8931c2583b0c )