Encountered difficulty locating the module path 'stream/promises'

When importing the following in a typescript nodejs app

import { pipeline } from "stream/promises";

Visual Studio Code (vscode) / eslint is showing an error message 

Unable to resolve path to module 'stream/promises'

https://i.sstatic.net/bOTT7.png

This issue appeared suddenly.

node -v v16.13.2
pnpm -v 6.29.1
"@types/node": "^17.0.12"

stream/promises is a part of node. I have confirmed that both the pipeline function and the TypeScript type are present and working, and the overall functionality of the application is maintained.

console.log({ pipeline }); // { pipeline: [Function: pipeline] }

Importing just stream works without any errors. I have verified this issue on both Windows 10 and Linux systems. What could be causing this, and how can it be resolved without simply ignoring it?

javascripttypescriptvisual-studio-codeimporteslint

Answer №1

It is important to confirm that your node version is above v15. Keep in mind that if you are using nvm, the node version in your terminal may differ from the one used by vscode. You can check your current version by running 'nvm unload; node -v'. Adding nvm to your rc script files might help, but occasionally it may not resolve quickly enough and cause issues with vs code.

Answer №2

Ensure that "node_modules" is listed in your package.json file and check that the version is greater than 15, for example:

"@types/node": "^18.11.0",

Answer №3

Solution for serverless with middyjs

Error: "Runtime.ImportModuleError: Error: Could not locate module 'stream/promises'"

Background:

Upon further investigation, it has been identified that the error originates from @middy/core (v4.6.5), which relies on node:stream/promises (source) requiring node version >=15.x

Resolution Steps

Verify in the serverless.yml file under provider section and ensure the runtime is set to a version >= 15.x

provider:
  name: aws
  runtime: nodejs16.x

If you have custom plugins like esbuild, make sure they are updated to match the specified node version

custom:
    esbuild:
      bundle: true
      target: node16
      platform: node

Note: If you do not utilize stream/promises in your code but encounter the error (as I did), inspect recent package updates for potential internal use of stream/promises.

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