Laravel-mix: Error: custom keyword definition is invalid: data/errors should be boolean

[ntraykov]

• Laravel Mix Version: 4.0.14
• Node Version (node -v): v8.11.4
• NPM Version (npm -v): 6.7.0
• OS: Windows 10

Description:

When I run npm run dev or npm run prod on a fresh Laravel installation, I've got the following exception:

`> npm run development

@ development C:\Apache24\htdocs\rescue
cross-env NODE_ENV=development node_modules/webpack/bin/webpack.js --progress --hide-modules --config=node_modules/laravel-mix/setup/webpack.config.js

C:\Apache24\htdocs\rescue\node_moduleswebpack-cli\bin\cli.js:231
throw err;
^

Error: custom keyword definition is invalid: data/errors should be boolean
at Ajv.addKeyword (C:\Apache24\htdocs\rescue\node_modules\ajv\lib\keyword.js:65:13)
at module.exports (C:\Apache24\htdocs\rescue\node_modules\ajv-errors\index.js:10:7)
at Object. (C:\Apache24\htdocs\rescue\node_moduleswebpack\node_modules\schema-utils\src\validateOptions.js:22:1)
at Module._compile (C:\Apache24\htdocs\rescue\node_modules\v8-compile-cache\v8-compile-cache.js:178:30)
at Object.Module._extensions..js (module.js:663:10)
at Module.load (module.js:565:32)
at tryModuleLoad (module.js:505:12)
at Function.Module._load (module.js:497:3)
at Module.require (module.js:596:17)
at require (C:\Apache24\htdocs\rescue\node_modules\v8-compile-cache\v8-compile-cache.js:159:20)
at Object. (C:\Apache24\htdocs\rescue\node_moduleswebpack\node_modules\schema-utils\src\index.js:7:25)
at Module._compile (C:\Apache24\htdocs\rescue\node_modules\v8-compile-cache\v8-compile-cache.js:178:30)
at Object.Module._extensions..js (module.js:663:10)
at Module.load (module.js:565:32)
at tryModuleLoad (module.js:505:12)
at Function.Module._load (module.js:497:3)
at Module.require (module.js:596:17)
at require (C:\Apache24\htdocs\rescue\node_modules\v8-compile-cache\v8-compile-cache.js:159:20)
at Object. (C:\Apache24\htdocs\rescue\node_moduleswebpack\lib\SourceMapDevToolPlugin.js:13:25)
at Module._compile (C:\Apache24\htdocs\rescue\node_modules\v8-compile-cache\v8-compile-cache.js:178:30)
at Object.Module._extensions..js (module.js:663:10)
at Module.load (module.js:565:32)
at tryModuleLoad (module.js:505:12)
at Function.Module._load (module.js:497:3)
at Module.require (module.js:596:17)
at require (C:\Apache24\htdocs\rescue\node_modules\v8-compile-cache\v8-compile-cache.js:159:20)
at Object. (C:\Apache24\htdocs\rescue\node_moduleswebpack\lib\WebpackOptionsApply.js:16:32)
at Module._compile (C:\Apache24\htdocs\rescue\node_modules\v8-compile-cache\v8-compile-cache.js:178:30)
at Object.Module._extensions..js (module.js:663:10)
at Module.load (module.js:565:32)
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! @ development: cross-env NODE_ENV=development node_modules/webpack/bin/webpack.js --progress --hide-modules --config=node_modules/laravel-mix/setup/webpack.config.js
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the @ development script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR! C:\Users\User\AppData\Roaming\npm-cache_logs\2019-02-10T00_03_30_022Z-debug.log
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! @ dev: npm run development
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the @ dev script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR! C:\Users\User\AppData\Roaming\npm-cache_logs\2019-02-10T00_03_30_102Z-debug.log
`

Steps To Reproduce:

[radarsu]

Was looking for exactly the same error for last hour in issues.

• Laravel Mix Version: 4.0.7 and 4.0.14
• Node Version (node -v): v11.2.0
• NPM Version (npm -v): 6.4.1
• OS: Ubuntu

P.S. If you need to solve an issue temporarily: npm i laravel-mix@3 worked for me.

[ewan777]

same problem here, thanks for the temp fix radarsu. Worked for me.

[beebmx]

I have the same problem.
A temporary fix for me was:

npm install [email protected] --save-dev

Then you can run npm run dev

[ntraykov]

Thanks a lot guys!

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.