# Cannot find module \<filename\> or its corresponding type declarations

**URL:** <https://answers.netlify.com/t/cannot-find-module-filename-or-its-corresponding-type-declarations/70268>\
**Category:** Support\
**Tags:** deployment, create-react-app\
**Created:** [June 29, 2022, 7:26pm UTC](https://answers.netlify.com/t/cannot-find-module-filename-or-its-corresponding-type-declarations/70268 "2022-06-29T19:26:48Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![bbatalla](https://avatars.discourse-cdn.com/v4/letter/b/f6c823/32.png) [@bbatalla](https://answers.netlify.com/u/bbatalla)\
**Post date:** [June 29, 2022, 7:26pm UTC](https://answers.netlify.com/t/cannot-find-module-filename-or-its-corresponding-type-declarations/70268/1 "2022-06-29T19:26:48Z")

</div>

- Netlify site name: `rococo-dango-a809ba.netlify.app`
- Build problems:

I am at a loss. I am able to build and run locally with no issues. I can manually deploy my local build to netlify and it runs without issue. I have matched netlifies node and npm version and no problem building. I have narrowed down the root cause to `react-scripts` version update. If I downgrade to `3.X.X` it will build ok, but I need to update the script else I will have to downgrade my typescript version and will not be able to use other dependencies.

Appreciate any help on resolving this.

```auto
2:55:29 PM: Build ready to start
2:55:31 PM: build-image version: 72a309a113b53ef075815b129953617827965e48 (focal)
2:55:31 PM: build-image tag: v4.8.2
2:55:31 PM: buildbot version: 515e5c33287d8b909c004fcf2e460e8645e8c1c6
2:55:31 PM: Fetching cached dependencies
2:55:35 PM: Finished downloading cache in 4.609439367s
2:55:35 PM: Starting to extract cache
2:55:50 PM: Finished extracting cache in 14.185803935s
2:55:50 PM: Finished fetching cache in 18.845411871s
2:55:50 PM: Starting to prepare the repo for build
2:55:50 PM: Preparing Git Reference refs/heads/dev
2:55:51 PM: Parsing package.json dependencies
2:55:52 PM: Different publish path detected, going to use the one specified in the Netlify configuration file: 'pigeon-frontend/build' versus 'build' in the Netlify UI
2:55:53 PM: Starting build script
2:55:53 PM: Installing dependencies
2:55:53 PM: Python version set to 2.7
2:55:53 PM: Started restoring cached node version
2:55:55 PM: Finished restoring cached node version
2:55:55 PM: Attempting node version '14' from .nvmrc
2:55:55 PM: v14.19.3 is already installed.
2:55:55 PM: Now using node v14.19.3 (npm v6.14.17)
2:55:55 PM: Started restoring cached build plugins
2:55:55 PM: Finished restoring cached build plugins
2:55:55 PM: Attempting ruby version 2.7.2, read from environment
2:55:56 PM: Using ruby version 2.7.2
2:55:57 PM: Using PHP version 8.0
2:55:57 PM: No npm workspaces detected
2:55:57 PM: Started restoring cached node modules
2:55:57 PM: Finished restoring cached node modules
2:55:57 PM: Installing NPM modules using NPM version 6.14.17
2:56:24 PM: npm WARN deprecated svgo@1.3.2: This SVGO version is no longer supported. Upgrade to v2.x.x.
2:56:24 PM: npm WARN deprecated stable@0.1.8: Modern JS already guarantees Array#sort() is a stable sort, so this library is deprecated. See the compatibility table on MDN: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/sort#browser_compatibility
2:56:52 PM: > core-js@3.23.3 postinstall /opt/build/repo/pigeon-frontend/node_modules/core-js
2:56:52 PM: > node -e "try{require('./postinstall')}catch(e){}"
2:56:53 PM: npm notice created a lockfile as package-lock.json. You should commit this file.
2:56:53 PM: npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@^2.3.2 (node_modules/react-scripts/node_modules/fsevents):
2:56:53 PM: npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@2.3.2: wanted {"os":"darwin","arch":"any"} (current: {"os":"linux","arch":"x64"})
2:56:53 PM: npm WARN airbnb-prop-types@2.16.0 requires a peer of react@^0.14 || ^15.0.0 || ^16.0.0-alpha but none is installed. You must install peer dependencies yourself.
2:56:53 PM: npm WARN bootstrap@4.6.1 requires a peer of popper.js@^1.16.1 but none is installed. You must install peer dependencies yourself.
2:56:53 PM: npm WARN react-native-get-random-values@1.8.0 requires a peer of react-native@>=0.56 but none is installed. You must install peer dependencies yourself.
2:56:53 PM: npm WARN @apideck/better-ajv-errors@0.3.6 requires a peer of ajv@>=8 but none is installed. You must install peer dependencies yourself.
2:56:53 PM: added 530 packages from 279 contributors, removed 615 packages, updated 510 packages, moved 22 packages and audited 2129 packages in 55.201s
2:56:54 PM: 194 packages are looking for funding
2:56:54 PM: run `npm fund` for details
2:56:54 PM: found 8 vulnerabilities (1 moderate, 7 high)
2:56:54 PM: run `npm audit fix` to fix them, or `npm audit` for details
2:56:54 PM: NPM modules installed
2:56:54 PM: Started restoring cached go cache
2:56:54 PM: Finished restoring cached go cache
2:56:54 PM: Installing Go version 1.16.5 (requested 1.16.5)
2:56:59 PM: unset GOOS;
2:56:59 PM: unset GOARCH;
2:56:59 PM: export GOROOT='/opt/buildhome/.gimme/versions/go1.16.5.linux.amd64';
2:56:59 PM: export PATH="/opt/buildhome/.gimme/versions/go1.16.5.linux.amd64/bin:${PATH}";
2:56:59 PM: go version >&2;
2:56:59 PM: export GIMME_ENV="/opt/buildhome/.gimme/env/go1.16.5.linux.amd64.env"
2:56:59 PM: go version go1.16.5 linux/amd64
2:56:59 PM: Installing missing commands
2:56:59 PM: Verify run directory
2:57:00 PM: ​
2:57:00 PM: ────────────────────────────────────────────────────────────────
2:57:00 PM: Netlify Build                                                 
2:57:00 PM: ────────────────────────────────────────────────────────────────
2:57:00 PM: ​
2:57:00 PM: ❯ Version
2:57:00 PM: @netlify/build 27.3.0
2:57:00 PM: ​
2:57:00 PM: ❯ Flags
2:57:00 PM: baseRelDir: true
2:57:00 PM: buildId: 62bca0212343c00008815eb5
2:57:00 PM: deployId: 62bca0212343c00008815eb7
2:57:00 PM: ​
2:57:00 PM: ❯ Current directory
2:57:00 PM: /opt/build/repo/pigeon-frontend
2:57:00 PM: ​
2:57:00 PM: ❯ Config file
2:57:00 PM: No config file was defined: using default values.
2:57:00 PM: ​
2:57:00 PM: ❯ Context
2:57:00 PM: production
2:57:00 PM: ​
2:57:00 PM: ❯ Loading plugins
2:57:00 PM: - @sentry/netlify-build-plugin@1.1.1 from Netlify app
2:57:01 PM: ​
2:57:01 PM: ────────────────────────────────────────────────────────────────
2:57:01 PM: 1. Build command from Netlify app                             
2:57:01 PM: ────────────────────────────────────────────────────────────────
2:57:01 PM: ​
2:57:01 PM: $ npm run build
2:57:02 PM: > pigeon-frontend@3.0.0 build /opt/build/repo/pigeon-frontend
2:57:02 PM: > react-scripts build
2:57:04 PM: Creating an optimized production build...
2:58:52 PM: Failed to compile.
2:58:52 PM: 
2:58:52 PM: TS2307: Cannot find module './AutocompleteOptions.module.scss' or its corresponding type declarations.
2:58:52 PM: 1 | import { Card } from 'react-bootstrap'
2:58:52 PM: 2 | import React from 'react'
2:58:52 PM: > 3 | import classes from './AutocompleteOptions.module.scss'
2:58:52 PM: | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2:58:52 PM: 4 |
2:58:52 PM: 5 | export const AutocompleteOptions = ({ data, status, handleSelect }) => {
2:58:52 PM: 6 | const renderSuggestions = () =>
2:58:52 PM: npm ERR! code ELIFECYCLE
2:58:52 PM: npm ERR! errno 1
2:58:52 PM: npm ERR! pigeon-frontend@3.0.0 build: `react-scripts build`
2:58:52 PM: npm ERR! Exit status 1
2:58:52 PM: npm ERR!
2:58:52 PM: npm ERR! Failed at the pigeon-frontend@3.0.0 build script.
2:58:52 PM: npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
2:58:52 PM: npm ERR! A complete log of this run can be found in:
2:58:52 PM: npm ERR! /opt/buildhome/.npm/_logs/2022-06-29T18_58_52_560Z-debug.log
2:58:52 PM: ​
2:58:52 PM: ────────────────────────────────────────────────────────────────
2:58:52 PM: "build.command" failed                                        
2:58:52 PM: ────────────────────────────────────────────────────────────────
2:58:52 PM: ​
2:58:52 PM: Error message
2:58:52 PM: Command failed with exit code 1: npm run build (https://ntl.fyi/exit-code-1)
2:58:52 PM: ​
2:58:52 PM: Error location
2:58:52 PM: In Build command from Netlify app:
2:58:52 PM: npm run build
2:58:52 PM: ​
2:58:52 PM: Resolved config
2:58:52 PM: build:
2:58:52 PM: base: /opt/build/repo/pigeon-frontend
2:58:52 PM: command: npm run build
2:58:52 PM: commandOrigin: ui
2:58:52 PM: environment:
2:58:52 PM: - NODE_OPTIONS
2:58:52 PM: - ONEGRAPH_AUTHLIFY_TOKEN
2:58:52 PM: - REACT_APP_COGNITO_CLIENT_ID
2:58:52 PM: - REACT_APP_COGNITO_USER_POOL_ID
2:58:52 PM: - REACT_APP_ENVIRONMENT
2:58:52 PM: - REACT_APP_GOOGLE_MAPS_KEY
2:58:52 PM: - REACT_APP_HELLO_SIGN_CLIENT_ID
2:58:52 PM: - REACT_APP_PIGEON_API_URL
2:58:52 PM: - REACT_APP_PIGEON_BASE_URL
2:58:52 PM: - REACT_APP_STRIPE_API_KEY
2:58:52 PM: - REACT_APP_STRIPE_CLIENT_ID
2:58:52 PM: - SENTRY_AUTH_TOKEN
2:58:52 PM: - SENTRY_ORG
2:58:52 PM: - SENTRY_PROJECT
2:58:52 PM: publish: /opt/build/repo/pigeon-frontend/build
2:58:52 PM: publishOrigin: ui
2:58:52 PM: plugins:
2:58:52 PM: - inputs: {}
2:58:52 PM: origin: ui
2:58:52 PM: package: '@sentry/netlify-build-plugin'
2:58:53 PM: Caching artifacts
2:58:53 PM: Started saving node modules
2:58:53 PM: Finished saving node modules
2:58:53 PM: Started saving build plugins
2:58:53 PM: Finished saving build plugins
2:58:53 PM: Started saving pip cache
2:58:53 PM: Finished saving pip cache
2:58:53 PM: Started saving emacs cask dependencies
2:58:53 PM: Finished saving emacs cask dependencies
2:58:53 PM: Started saving maven dependencies
2:58:53 PM: Finished saving maven dependencies
2:58:53 PM: Started saving boot dependencies
2:58:53 PM: Finished saving boot dependencies
2:58:53 PM: Started saving rust rustup cache
2:58:53 PM: Finished saving rust rustup cache
2:58:53 PM: Started saving go dependencies
2:58:53 PM: Finished saving go dependencies
2:58:53 PM: Build failed due to a user error: Build script returned non-zero exit code: 2
2:58:53 PM: Creating deploy upload records
2:58:53 PM: Failing build: Failed to build site
2:58:53 PM: Failed during stage 'building site': Build script returned non-zero exit code: 2 (https://ntl.fyi/exit-code-2)
2:58:53 PM: Finished processing build request in 3m22.404131378s

```

Was able to resolve the issue by downgrading `react-scripts` from 5.0.1 to 4.0.3.

---

<div class="post-metadata">

**Author:** ![hrishikesh](https://sea1.discourse-cdn.com/netlify/user_avatar/answers.netlify.com/hrishikesh/32/74607_2.png) [@hrishikesh](https://answers.netlify.com/u/hrishikesh)\
**Post date:** [July 3, 2022, 11:36am UTC](https://answers.netlify.com/t/cannot-find-module-filename-or-its-corresponding-type-declarations/70268/2 "2022-07-03T11:36:43Z")

</div>

Have you declared types for `*.scss`:

> <https://stackoverflow.com/questions/40382842/cant-import-css-scss-modules-typescript-says-cannot-find-module>

In any case, if a library version upgrade/downgrade is causing/fixing issues, the problem appears to be with that library instead of Netlify. Especially since it’s a major version, have you checked the migration guide?

Is this related:

> [@\[Support Guide\] Netlify app builds locally but fails on deploy (case sensitivity)](https://answers.netlify.com/t/support-guide-netlify-app-builds-locally-but-fails-on-deploy-case-sensitivity/10754):
>
> Last updated by Netlify Support: July 2025 Are you struggling to understand why your project runs locally but errors out with missing files or logs that point toward issues with case when you try and build on Netlify? You are not alone. Often, case (as in: UPPERCASE or lowercase letters in filenames or paths) can cause problems. Here is a guide to understanding how case sensitivity issues present themselves, why they arise, and how you can fix them! 1. Errors you might see Case sensitivity iss…