ERROR #98123 WEBPACK when running `npm run develop`

I would like to create a new Gatsby site using the instructions on https://www.gatsbyjs.com/docs/quick-start , so I ran:

npm init gatsby  # see note below
cd my-gatsby-site
npm run develop

Note: I didn’t change any configuration, so I’m using JavaScript (instead of TypeScript), not using a CMS, not using a styling system, and installed no additional features.

During running npm run develop, I’m getting the following error:

> my-gatsby-site@1.0.0 develop
> gatsby develop

success compile gatsby files - 0.812s
success load gatsby config - 0.020s
success load plugins - 0.198s
success onPreInit - 0.001s
success initialize cache - 0.121s
success copy gatsby files - 0.113s
success Compiling Gatsby Functions - 0.277s
success onPreBootstrap - 0.294s
success createSchemaCustomization - 0.001s
success Checking for changed pages - 0.001s
success source and transform nodes - 0.065s
success building schema - 0.143s
success createPages - 0.008s
success createPagesStatefully - 0.044s
info Total nodes: 24, SitePage nodes: 4 (use --verbose for breakdown)
success Checking for changed pages - 0.001s
success write out redirect data - 0.041s
success onPostBootstrap - 0.002s
info bootstrap finished - 5.190s
success onPreExtractQueries - 0.002s
success extract queries from components - 0.082s
success write out requires - 0.005s
success run page queries - 0.017s - 3/3 174.40/s

 ERROR #98123  WEBPACK

Generating development JavaScript bundle failed

You must provide the URL of lib/mappings.wasm by calling SourceMapConsumer.initialize({
'lib/mappings.wasm': ... }) before using SourceMapConsumer

File: .cache/app.js


 ERROR #98123  WEBPACK

Generating development JavaScript bundle failed

You must provide the URL of lib/mappings.wasm by calling SourceMapConsumer.initialize({
'lib/mappings.wasm': ... }) before using SourceMapConsumer

File: .cache/polyfill-entry.js

failed Building development bundle - 8.585s
ERROR in ./.cache/app.js
Module build failed (from 
./node_modules/@pmmmwh/react-refresh-webpack-plugin/loader/index.js):
Error: You must provide the URL of lib/mappings.wasm by calling 
SourceMapConsumer.initialize({ 'lib/mappings.wasm': ... }) before using SourceMapConsumer
    at readWasm
(/Users/xfq/test/gatsby-test/my-gatsby-site/node_modules/source-map/lib/read-wasm.js:8:13)
    at wasm
(/Users/xfq/test/gatsby-test/my-gatsby-site/node_modules/source-map/lib/wasm.js:25:16)
    at /Users/xfq/test/gatsby-test/my-gatsby-site/node_modules/source-map/lib/source-map-co
nsumer.js:264:14
    at Object._loader (/Users/xfq/test/gatsby-test/my-gatsby-site/node_modules/@pmmmwh/reac
t-refresh-webpack-plugin/loader/index.js:81:9)

ERROR in ./.cache/polyfill-entry.js
Module build failed (from 
./node_modules/@pmmmwh/react-refresh-webpack-plugin/loader/index.js):
Error: You must provide the URL of lib/mappings.wasm by calling 
SourceMapConsumer.initialize({ 'lib/mappings.wasm': ... }) before using SourceMapConsumer
    at readWasm
(/Users/xfq/test/gatsby-test/my-gatsby-site/node_modules/source-map/lib/read-wasm.js:8:13)
    at wasm
(/Users/xfq/test/gatsby-test/my-gatsby-site/node_modules/source-map/lib/wasm.js:25:16)
    at /Users/xfq/test/gatsby-test/my-gatsby-site/node_modules/source-map/lib/source-map-co
nsumer.js:264:14
    at Object._loader (/Users/xfq/test/gatsby-test/my-gatsby-site/node_modules/@pmmmwh/reac
t-refresh-webpack-plugin/loader/index.js:81:9)

develop compiled with 2 errors
success Writing page-data.json files to public directory - 0.099s - 3/4 40.45/s

Environment:

node 18.3.0
npm 8.11.0
OS: macOS 12.4

I’m not sure how to debug this problem. Can anyone point me in the right direction?

Answer

This issue is related to your Node version (^18.0).

The issue should be resolved if you downgrade to 16, deleting your node_modules, your package-lock.json and reinstalling them again.

If that’s not an option if you need to stick to version 18 use the following resolution in your package.json:

  "resolutions": {
    "source-map": "^0.8.0-beta.0"
  },

Another solution is upgrading Gatsby to its latest version by:

npm install gatsby@next

More details can be found at: https://github.com/gatsbyjs/gatsby/issues/35607

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Answer