Definitelytyped: @types/node Class 'Module' incorrectly implements interface 'NodeModule'.

[egorshulga]

• [x] I tried using the @types/node package and had problems.
• [x] [Mention](https://github.com/blog/821-mention-somebody-they-re-notified) the authors (see Definitions by: in index.d.ts) so they can respond.
  
  
  
  • Authors: @devoto13, @andy-ms
  
  

Compilation cannot succeed with the version 8.0.27 installed. The error is
node_modules/@types/node/index.d.ts(5615,11): error TS2420: Class 'Module' incorrectly implements interface 'NodeModule'. Property 'hot' is missing in type 'Module'.

Version 8.0.26 does not have this error.

[ldrick]

Perfect, thanks, was quite in this moment writing the same issue. This seems to be an conflict with @types/webpack-env

[devoto13]

My guess would be that somewhere in the project you augment NodeModule definition by adding hot property in it. I added Module class, which implements NodeModule recently. and it obviously doesn't have this new property added because of the augmentation.

As a temporary fix you can either remove augmentation ~or add something like below (haven't actually tested it)~. Or just pin version to 8.0.26 until it's fixed.

(incorrect code removed)

I'll submit a PR to fix this issue soon.

[burabure]

still getting the same error. It seems you NEED to add @types/webpack-env to package.json in order to fix this

[andy-ms]

@burabure The contents of your package.json shouldn't affect TypeScript -- although the contents of node_modules does. Having just @types/node installed without @types/webpack-env doesn't reproduce the error for me, nor does having both installed. Maybe you fixed your error by updating webpack-env?

[burabure]

ok the issue was that another of my deps @types/storybook__react had a dependecy on the old @types/webpack-env

[micahgodbolt]

@burabure what was your solution. I'm in the same boat. Just remove webpack-env, as storybook will bring it in as a dependency?

[burabure]

@micahgodbolt I did yarn remove @types/node @types/storybook__react && yarn add -D @types/node @types/storybook__react but updating those might do the job also

[sentilesdal]

@burabure, @micaelmbagira I was able to solve this problem by downgrading @types/webpack-env to 1.14.1.

[Neilpoulin]

I had this same issue, although with a slightly different error message. Downgrading to @types/[email protected] as @sentilesdal suggested did the trick for me.

Below was my error when running tsc. This problem started after I added storybook to my project. I also ended up downgrading my Note types to @types/[email protected]. I'm not sure what specifically solved the problem, but with those two settings, I was able to get things working.

Here's the error:
```
node_modules/@types/webpack-env/index.d.ts:349:15 - error TS2430: Interface 'NodeJS.Module' incorrectly extends interface '__WebpackModuleApi.Module'.
Types of property 'parent' are incompatible.
Type 'Module | null' is not assignable to type 'NodeModule | null'.
Type 'Module' is not assignable to type 'NodeModule'.
Property 'hot' is optional in type 'Module' but required in type 'NodeModule'.

349 interface Module extends __WebpackModuleApi.Module {}
```

[sinoon]

for the get type error buddy, you can add "types": ["@types/node"] to project tsconfig.js, it means that only the type listed it will import in the type system.

[ferm10n]

My team also ran into this issue, and downgrading @types/webpack-env did not help.

Instead, we were able to resolve it by rolling back @types/[email protected] to @types/[email protected]

[sanex3339]

Same problem with @types/[email protected] and above

[Shinigami92]

Having this problem with @types/[email protected] but not with @types/[email protected] !!!
Just a bugfix release turns out to be a breaking change :eyes:

[sandersn]

DT piggy-backs on semver, so you should specify exact versions of @types packages:
https://github.com/DefinitelyTyped/DefinitelyTyped#how-do-definitely-typed-package-versions-relate-to-versions-of-the-corresponding-library

[ferm10n]

@sandersn So maybe those of us who are affected should try to target the packages that use @types/node instead?

I could see that leading to having multiple installs of @types/node at slightly different versions, I'm not familiar enough with how these types are used to determine if that'd be an issue but I'd expect it to be fine.

[Shinigami92]

Works again with 14.11.1 as if nothing had ever happened 🤷‍♂️

[cefjic]

I have the error Interface 'NodeJS.Module' incorrectly extends interface '__WebpackModuleApi.Module'. on v14.11.1

[ferm10n]

What are the odds that there's different versions of the same package?

Here's an idea to help us figure things out. For anyone experiencing this problem currently and in future:

• npm ci to do a clean install
• verify the error is still present
• comment and attach your project's package-lock and tsconfig (remove sensitive stuff if needed)

[tobilen]

Same issue with 14.11.2 in my project. Tried downgrading to 14.11.1 and then 14.11.0, same issue.

Working tree (including lockfile and package.json) -> https://github.com/ivx/react-skeletons/tree/d3ffc9fbbcf3f7c08a230e9c287a55b53d785ac7
CI Result: https://app.circleci.com/pipelines/github/ivx/react-skeletons/83/workflows/11182212-cb51-432b-9653-cf5cca0f22eb/jobs/216

Resolved it by removing @types/node since i didn't need it anymore. Output of yarn why @types/node might be interesting:

$ yarn why @types/node
yarn why v1.22.4
[1/4] Why do we have the module "@types/node"...?
[2/4] Initialising dependency graph...
[3/4] Finding dependency...
[4/4] Calculating file sizes...
=> Found "@types/[email protected]"
info Has been hoisted to "@types/node"
info This module exists because it's specified in "devDependencies".
info Disk size without dependencies: "824KB"
info Disk size with unique dependencies: "824KB"
info Disk size with transitive dependencies: "824KB"
info Number of shared dependencies: 0
=> Found "@jest/types#@types/[email protected]"
info This module exists because "@jest#types" depends on it.
info Disk size without dependencies: "820KB"
info Disk size with unique dependencies: "820KB"
info Disk size with transitive dependencies: "820KB"
info Number of shared dependencies: 0
=> Found "@jest/core#@types/[email protected]"
info This module exists because "jest#@jest#core" depends on it.
info Disk size without dependencies: "820KB"
info Disk size with unique dependencies: "820KB"
info Disk size with transitive dependencies: "820KB"
info Number of shared dependencies: 0
=> Found "jest-util#@types/[email protected]"
info This module exists because "ts-jest#jest-util" depends on it.
info Disk size without dependencies: "820KB"
info Disk size with unique dependencies: "820KB"
info Disk size with transitive dependencies: "820KB"
info Number of shared dependencies: 0
=> Found "@jest/console#@types/[email protected]"
info This module exists because "jest#@jest#core#@jest#console" depends on it.
info Disk size without dependencies: "820KB"
info Disk size with unique dependencies: "820KB"
info Disk size with transitive dependencies: "820KB"
info Number of shared dependencies: 0
=> Found "@types/node-fetch#@types/[email protected]"
info This module exists because "@storybook#react#@storybook#core#@types#node-fetch" depends on it.
info Disk size without dependencies: "820KB"
info Disk size with unique dependencies: "820KB"
info Disk size with transitive dependencies: "820KB"
info Number of shared dependencies: 0
=> Found "jest-haste-map#@types/[email protected]"
info This module exists because "jest#@jest#core#jest-haste-map" depends on it.
info Disk size without dependencies: "820KB"
info Disk size with unique dependencies: "820KB"
info Disk size with transitive dependencies: "820KB"
info Number of shared dependencies: 0
=> Found "jest-runner#@types/[email protected]"
info This module exists because "jest#@jest#core#jest-runner" depends on it.
info Disk size without dependencies: "820KB"
info Disk size with unique dependencies: "820KB"
info Disk size with transitive dependencies: "820KB"
info Number of shared dependencies: 0
=> Found "jest-watcher#@types/[email protected]"
info This module exists because "jest#@jest#core#jest-watcher" depends on it.
info Disk size without dependencies: "820KB"
info Disk size with unique dependencies: "820KB"
info Disk size with transitive dependencies: "820KB"
info Number of shared dependencies: 0
=> Found "@jest/environment#@types/[email protected]"
info This module exists because "jest#@jest#core#jest-runner#@jest#environment" depends on it.
info Disk size without dependencies: "820KB"
info Disk size with unique dependencies: "820KB"
info Disk size with transitive dependencies: "820KB"
info Number of shared dependencies: 0
=> Found "@jest/fake-timers#@types/[email protected]"
info This module exists because "jest#@jest#core#jest-runtime#@jest#fake-timers" depends on it.
info Disk size without dependencies: "820KB"
info Disk size with unique dependencies: "820KB"
info Disk size with transitive dependencies: "820KB"
info Number of shared dependencies: 0
=> Found "@types/glob#@types/[email protected]"
info This module exists because "@storybook#react#@storybook#core#glob-promise#@types#glob" depends on it.
info Disk size without dependencies: "820KB"
info Disk size with unique dependencies: "820KB"
info Disk size with transitive dependencies: "820KB"
info Number of shared dependencies: 0
=> Found "@types/graceful-fs#@types/[email protected]"
info This module exists because "jest#@jest#core#jest-haste-map#@types#graceful-fs" depends on it.
info Disk size without dependencies: "820KB"
info Disk size with unique dependencies: "820KB"
info Disk size with transitive dependencies: "820KB"
info Number of shared dependencies: 0
=> Found "@types/webpack#@types/[email protected]"
info This module exists because "@storybook#react#@storybook#core#html-webpack-plugin#@types#webpack" depends on it.
info Disk size without dependencies: "820KB"
info Disk size with unique dependencies: "820KB"
info Disk size with transitive dependencies: "820KB"
info Number of shared dependencies: 0
=> Found "jest-environment-jsdom#@types/[email protected]"
info This module exists because "jest#@jest#core#jest-config#jest-environment-jsdom" depends on it.
info Disk size without dependencies: "820KB"
info Disk size with unique dependencies: "820KB"
info Disk size with transitive dependencies: "820KB"
info Number of shared dependencies: 0
=> Found "jest-environment-node#@types/[email protected]"
info This module exists because "jest#@jest#core#jest-config#jest-environment-node" depends on it.
info Disk size without dependencies: "820KB"
info Disk size with unique dependencies: "820KB"
info Disk size with transitive dependencies: "820KB"
info Number of shared dependencies: 0
=> Found "jest-jasmine2#@types/[email protected]"
info This module exists because "jest#@jest#core#jest-config#jest-jasmine2" depends on it.
info Disk size without dependencies: "820KB"
info Disk size with unique dependencies: "820KB"
info Disk size with transitive dependencies: "820KB"
info Number of shared dependencies: 0
=> Found "jest-mock#@types/[email protected]"
info This module exists because "jest#@jest#core#jest-runtime#jest-mock" depends on it.
info Disk size without dependencies: "820KB"
info Disk size with unique dependencies: "820KB"
info Disk size with transitive dependencies: "820KB"
info Number of shared dependencies: 0
=> Found "jest-serializer#@types/[email protected]"
info This module exists because "jest#@jest#core#jest-haste-map#jest-serializer" depends on it.
info Disk size without dependencies: "820KB"
info Disk size with unique dependencies: "820KB"
info Disk size with transitive dependencies: "820KB"
info Number of shared dependencies: 0
=> Found "jest-worker#@types/[email protected]"
info This module exists because "@storybook#react#@storybook#core#terser-webpack-plugin#jest-worker" depends on it.
info Disk size without dependencies: "820KB"
info Disk size with unique dependencies: "820KB"
info Disk size with transitive dependencies: "820KB"
info Number of shared dependencies: 0
=> Found "@types/webpack-sources#@types/[email protected]"
info This module exists because "@storybook#react#@storybook#core#html-webpack-plugin#@types#webpack#@types#webpack-sources" depends on it.
info Disk size without dependencies: "820KB"
info Disk size with unique dependencies: "820KB"
info Disk size with transitive dependencies: "820KB"
info Number of shared dependencies: 0
Done in 0.55s.