Create-react-app: uglify error while doing `npm run build`

[psankar]

Is this a bug report?

Yes

Can you also reproduce the problem with npm 4.x?

5.3.0

Which terms did you search for in User Guide?

I searched for TypeError: Cannot read property 'reset' of undefined

Environment

1. node -v: v6.10.0
2. npm -v: 5.3.0
3. yarn --version (if you use Yarn):
4. npm ls react-scripts (if you haven’t ejected): [email protected]

Then, specify:

1. Operating system: Mac OS X
2. Browser and version (if relevant):

Steps to Reproduce

(Write your steps here:)

1. I ran npm run build which I used to create a deployable build. It used to work fine with react-scripts 1.0.6 Now with the latest react-scripts, I get the following error:

➜  frontend-web git:(master) npm run build

> [email protected] build /Users/psankar/go/src/gitlab.com/kaigal/kaigal/frontend-web
> react-scripts build

Creating an optimized production build...
Failed to compile.

Failed to minify the bundle. Error: static/js/main.d0e43aae.js from UglifyJs
TypeError: Cannot read property 'reset' of undefined
    at Array.forEach (native)
    at compiler.run (/Users/psankar/go/src/gitlab.com/kaigal/kaigal/frontend-web/node_modules/react-scripts/scripts/build.js:130:23)
    at emitRecords.err (/Users/psankar/go/src/gitlab.com/kaigal/kaigal/frontend-web/node_modules/webpack/lib/Compiler.js:269:13)
    at Compiler.emitRecords (/Users/psankar/go/src/gitlab.com/kaigal/kaigal/frontend-web/node_modules/webpack/lib/Compiler.js:375:38)
    at emitAssets.err (/Users/psankar/go/src/gitlab.com/kaigal/kaigal/frontend-web/node_modules/webpack/lib/Compiler.js:262:10)
    at applyPluginsAsyncSeries1.err (/Users/psankar/go/src/gitlab.com/kaigal/kaigal/frontend-web/node_modules/webpack/lib/Compiler.js:368:12)
    at next (/Users/psankar/go/src/gitlab.com/kaigal/kaigal/frontend-web/node_modules/tapable/lib/Tapable.js:218:11)
    at Compiler.compiler.plugin (/Users/psankar/go/src/gitlab.com/kaigal/kaigal/frontend-web/node_modules/webpack/lib/performance/SizeLimitsPlugin.js:99:4)
    at next (/Users/psankar/go/src/gitlab.com/kaigal/kaigal/frontend-web/node_modules/tapable/lib/Tapable.js:220:14)
    at /Users/psankar/go/src/gitlab.com/kaigal/kaigal/frontend-web/node_modules/sw-precache-webpack-plugin/lib/index.js:98:18
Read more here: http://bit.ly/2tRViJ9

npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! [email protected] build: `react-scripts build`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the [email protected] build 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!     /Users/psankar/.npm/_logs/2017-08-17T10_36_16_498Z-debug.log
➜  frontend-web git:(master)

Expected Behavior

Build happens cleanly

Actual Behavior

The above error was shown.

Reproducible Demo

(Paste the link to an example project and exact instructions to reproduce the issue.)

[gaearon]

Please provide a minimal project reproducing this.

[psankar]

After a bit more of googling, I did a rm -rf node_modules and reinstalled all the dependencies once again and everything works fine now. I will close the bug. Thanks.

[piotr-cz]

Duplicate issue: https://github.com/facebookincubator/create-react-app/issues/2953
This has something to do with _uglifyjs-webpack-plugin_ plugin