Question

63

Unexpected token punc «(», expected punc when creating chunk from UglifyJS

rated 0 times [ 68] [ 5] / answers: 1 / hits: 29679 / 7 Years ago, mon, march 6, 2017, 12:00:00

I have the following error when trying to do a production build using webpack 2.2.1 :

> cross-env NODE_ENV=production webpack --config internals/webpack/webpack.prod.babel.js --color -p --progress



 Hash: 7bb2cdb98aab2f36f7e1                                                                 

Version: webpack 2.2.1

Time: 259158ms

                           Asset       Size  Chunks                    Chunk Names

39.1ac14d04bb54ae025fbd.chunk.js     575 kB      39  [emitted]  [big]  

                       .htaccess    1.53 kB          [emitted]         

                   manifest.json  624 bytes          [emitted]         

 0.b0881f3ea995a2fc465f.chunk.js     600 kB       0  [emitted]  [big]  

 1.350b2d8a46d91e3c0911.chunk.js     918 kB       1  [emitted]  [big]  

 2.e52c43dc81bf586e8812.chunk.js     636 kB       2  [emitted]  [big]  

 3.c7b3f0e5477649c6c9d3.chunk.js     646 kB       3  [emitted]  [big]  

 4.8ce7dfe0860e39ae2456.chunk.js     631 kB       4  [emitted]  [big]  

 5.d78c86c5b48b1b431c01.chunk.js     632 kB       5  [emitted]  [big]  

 6.9f79d2c5fa73cb97cc74.chunk.js     630 kB       6  [emitted]  [big]  

 7.3a675854451d716221c2.chunk.js     649 kB       7  [emitted]  [big]  

 8.5f09ba293a356e88feab.chunk.js     627 kB       8  [emitted]  [big]  

 9.edc7562575e48e9bce12.chunk.js     642 kB       9  [emitted]  [big]  

10.4a4bb6e69f6d7255d6ca.chunk.js     632 kB      10  [emitted]  [big]  

11.f5b5e0d36957300688bb.chunk.js     655 kB      11  [emitted]  [big]  

12.d2f74bd43695364d6e84.chunk.js     645 kB      12  [emitted]  [big]  

13.ab88bb5c89848d464643.chunk.js     628 kB      13  [emitted]  [big]  

14.cde57af54e53f5fa794f.chunk.js     626 kB      14  [emitted]  [big]  

15.df611a46991bdba9f78f.chunk.js     626 kB      15  [emitted]  [big]  

16.22d8ed2fc86438543bca.chunk.js     707 kB      16  [emitted]  [big]  

17.432aca8b104eb242add1.chunk.js     666 kB      17  [emitted]  [big]  

18.0c86d3404ce0d14653b2.chunk.js     650 kB      18  [emitted]  [big]  

19.d7636acc74397167013d.chunk.js     627 kB      19  [emitted]  [big]  

20.c3c519d8882f810910a6.chunk.js     632 kB      20  [emitted]  [big]  

21.fd6ec98dac51c188c629.chunk.js     708 kB      21  [emitted]  [big]  

22.200e5f939f77900a2f2f.chunk.js     643 kB      22  [emitted]  [big]  

23.393d2400f3a4357f1c2d.chunk.js     628 kB      23  [emitted]  [big]  

24.1c21a605f12ff9ff2fa7.chunk.js     634 kB      24  [emitted]  [big]  

25.5f5e33f51fe307545c6b.chunk.js     631 kB      25  [emitted]  [big]  

26.92502f109e3d6e616332.chunk.js     634 kB      26  [emitted]  [big]  

27.5d1ea5d6ebae15b96769.chunk.js     580 kB      27  [emitted]  [big]  

28.d571ed979e55c69096c2.chunk.js     579 kB      28  [emitted]  [big]  

29.c74d3346aca8532faf08.chunk.js     578 kB      29  [emitted]  [big]  

30.a35f7487c1c559c7f5d7.chunk.js     579 kB      30  [emitted]  [big]  

31.dc58b8286da5cbfefea3.chunk.js     567 kB      31  [emitted]  [big]  

32.6c32f4f35f9cda5c3938.chunk.js     587 kB      32  [emitted]  [big]  

33.ca86ec92b1a188a9c8e6.chunk.js     598 kB      33  [emitted]  [big]  

34.73c3e986500f888a12f5.chunk.js     571 kB      34  [emitted]  [big]  

35.59e71f89d6afcb9932bf.chunk.js     575 kB      35  [emitted]  [big]  

36.6285ac7b1164d4b53fc9.chunk.js     596 kB      36  [emitted]  [big]  

37.c301c304dd0bada883df.chunk.js     601 kB      37  [emitted]  [big]  

38.843bd7f01b202ca4d1bf.chunk.js     590 kB      38  [emitted]  [big]  

                     favicon.ico    67.3 kB          [emitted]         

40.db40e1c52ff3bad0bb78.chunk.js     586 kB      40  [emitted]  [big]  

41.cea7167bc8d0015ce8a3.chunk.js     576 kB      41  [emitted]  [big]  

42.4da525baabf2a11ff762.chunk.js     615 kB      42  [emitted]  [big]  

43.10dd5cb77bd71053c86a.chunk.js     569 kB      43  [emitted]  [big]  

44.dd2089c95eff121ed148.chunk.js     572 kB      44  [emitted]  [big]  

45.735f9eb7b75a9e0d5e3c.chunk.js     570 kB      45  [emitted]  [big]  

46.c691a6442ef58163ecb2.chunk.js     583 kB      46  [emitted]  [big]  

47.0bfb099e1d1bd4edff39.chunk.js     566 kB      47  [emitted]  [big]  

48.5ba43bcc43c12ecb8e4e.chunk.js    82.6 kB      48  [emitted]         

49.5a8172a8a9ef896cb1f5.chunk.js    35.5 kB      49  [emitted]         

50.0e982f73a5beb9ccad3a.chunk.js    36.3 kB      50  [emitted]         

51.8ab7ac85d02819586dc1.chunk.js    46.3 kB      51  [emitted]         

52.c8f155d9cef8f9f2937d.chunk.js    79.6 kB      52  [emitted]         

53.36c2fad479bf35b0d1f1.chunk.js    37.4 kB      53  [emitted]         

54.63e68a1593ab8ee4f2c6.chunk.js    36.3 kB      54  [emitted]         

55.8f657b8fdc6163d0550b.chunk.js    42.4 kB      55  [emitted]         

56.2a4cab26835a307d9468.chunk.js      35 kB      56  [emitted]         

57.ec95d3459dd932a74352.chunk.js    38.9 kB      57  [emitted]         

58.5e4c7da441e6c3244e25.chunk.js    18.2 kB      58  [emitted]         

59.50524fa7662caade7171.chunk.js    41.2 kB      59  [emitted]         

60.04694585a84e27f4b4a2.chunk.js    4.02 kB      60  [emitted]         

61.f532c12ec94650a77c36.chunk.js    4.11 kB      61  [emitted]         

62.0f7e16b18f11e6104300.chunk.js    4.91 kB      62  [emitted]         

63.04cd26a9cc98f6d2e251.chunk.js    4.86 kB      63  [emitted]         

64.28e531e8f67544ae8bb4.chunk.js    3.69 kB      64  [emitted]         

65.c6d529e00cc2f02d298d.chunk.js    4.11 kB      65  [emitted]         

66.9cd0049cdf2fae8311ac.chunk.js    6.84 kB      66  [emitted]         

67.8d860ceb8cfd8afec941.chunk.js    10.1 kB      67  [emitted]         

68.d511e394e401edc4742a.chunk.js    5.86 kB      68  [emitted]         

69.552c985835c018f52e83.chunk.js    12.4 kB      69  [emitted]         

70.f855bd5800a4d71c9e47.chunk.js     7.7 kB      70  [emitted]         

71.692364c8d68e9689e36c.chunk.js    24.1 kB      71  [emitted]         

72.38336d6626d6def72d84.chunk.js    24.4 kB      72  [emitted]         

73.b039a0a0b71d6645c37a.chunk.js    8.45 kB      73  [emitted]         

74.38e2ce6ee4774d0ce704.chunk.js    3.65 kB      74  [emitted]         

75.fd7b46e332d33698b270.chunk.js     6.4 kB      75  [emitted]         

76.6d6cf7ed17606711ae18.chunk.js    4.96 kB      76  [emitted]         

77.ebdbafe3da683a49d201.chunk.js    8.08 kB      77  [emitted]         

    main.89765ef68e927cffc5d6.js    1.41 MB      78  [emitted]  [big]  main

                      index.html  643 bytes          [emitted]         

                           sw.js    24.3 kB          [emitted]         

[./app/app.js] ./app/app.js 11.9 kB {78} [built]

[./app/containers/App/index.js] ./app/containers/App/index.js 7.38 kB {78} [built]

[./app/containers/App/selectors.js] ./app/containers/App/selectors.js 1.87 kB {78} [built]

[./app/containers/LanguageProvider/index.js] ./app/containers/LanguageProvider/index.js 7.01 kB {78} [built]

[./app/global-styles.js] ./app/global-styles.js 786 bytes {78} [built]

[./app/i18n.js] ./app/i18n.js 2.98 kB {78} [built]

[./app/routes.js] ./app/routes.js 26.9 kB {78} [built]

[./app/store.js] ./app/store.js 3.01 kB {78} [built]

[./node_modules/babel-polyfill/lib/index.js] ./~/babel-polyfill/lib/index.js 833 bytes {78} [built]

[./node_modules/intl/locale-data/jsonp/en.js] ./~/intl/locale-data/jsonp/en.js 24 kB {71} [built]

   [1] multi ./app/app.js 28 bytes {78} [built]

[./node_modules/react-dom/index.js] ./~/react-dom/index.js 59 bytes {78} [built]

[./node_modules/react-redux/lib/index.js] ./~/react-redux/lib/index.js 475 bytes {78} [built]

[./node_modules/react-router-redux/lib/index.js] ./~/react-router-redux/lib/index.js 1.97 kB {78} [built]

[./node_modules/sanitize.css/sanitize.css] ./~/sanitize.css/sanitize.css 856 bytes {78} [built]

    + 1207 hidden modules



ERROR in 1.350b2d8a46d91e3c0911.chunk.js from UglifyJs

Unexpected token punc «(», expected punc «:» [1.350b2d8a46d91e3c0911.chunk.js:20075,15]

Child html-webpack-plugin for index.html:

    [./node_modules/html-webpack-plugin/lib/loader.js!./app/index.html] ./~/html-webpack-plugin/lib/loader.js!./app/index.html 588 bytes {0} [built]

Child __offline_serviceworker:

    [./node_modules/exports-loader/index.js?self.fetch!./node_modules/whatwg-fetch/fetch.js] ./~/exports-loader?self.fetch!./~/whatwg-fetch/fetch.js 12.6 kB {0} [built]

    [./node_modules/offline-plugin/empty-entry.js] ./~/offline-plugin/empty-entry.js 0 bytes {0} [built]

    [./node_modules/offline-plugin/lib/misc/sw-loader.js?json=%7B%22data_var_name%22%3A%22__wpo%22%2C%22loaders%22%3A%5B%5D%2C%22cacheMaps%22%3A%5B%5D%7D!./node_modules/offline-plugin/empty-entry.js] ./~/offline-plugin/lib/misc/sw-loader.js?json=%7B%22data_var_name%22%3A%22__wpo%22%2C%22loaders%22%3A%5B%5D%2C%22cacheMaps%22%3A%5B%5D%7D!./~/offline-plugin/empty-entry.js 16.2 kB {0} [built]



npm ERR! Linux 3.16.0-4-amd64

npm ERR! argv /usr/local/bin/node /usr/local/bin/npm run build

npm ERR! node v7.2.0

npm ERR! npm  v3.10.9

npm ERR! code ELIFECYCLE

npm ERR! [email protected] build: `cross-env NODE_ENV=production webpack --config internals/webpack/webpack.prod.babel.js --color -p --progress`

npm ERR! Exit status 2

I really don't know from where in my code it come from. I have just repared all the unit tests after month of non tdd development.

Is there a way to diagnosis this ?

Answers

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paolam

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3 Years ago

answered 7 Years ago lucillemariselal · Accepted Answer

UglifyJs does not support ES6. The error is very likely the method shorthand syntax. For example:

const obj = {

  method() {

    // ...

  }

};

When it sees the opening parenthesis, it expected a colon instead, like this:

const obj = {

  method: function() {

    // ...

  }

};

Is there a way to diagnosis this ?

It tells you the exact line in your chunk, so take a look at it. In the error message you posted it is:

[1.350b2d8a46d91e3c0911.chunk.js:20075,15]

             ^                     ^    ^

         filename                line  column

Then you can simply search your project for an identifier you see. If you don't want to search the entire project you can run webpack with the --display-chunks flag. This will show which modules are included in the respective chunks, so you only need to look into those.

Instead of having to replace all the shorthand syntax, you can tell babel to transpile the shorthand syntax with the babel plugin transform-es2015-shorthand-properties.

For the record: Unit tests won't find such errors.