# RC.0 - Cannot import json - require is not defined

**URL:** <https://forum.ionicframework.com/t/rc-0-cannot-import-json-require-is-not-defined/65600>\
**Category:** ionic-v3\
**Created:** [October 3, 2016, 5:01pm UTC](https://forum.ionicframework.com/t/rc-0-cannot-import-json-require-is-not-defined/65600 "2016-10-03T17:01:26Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![sergiomilici](https://sea1.discourse-cdn.com/ionicframework/user_avatar/forum.ionicframework.com/sergiomilici/32/100741_2.png) [@sergiomilici](https://forum.ionicframework.com/u/sergiomilici)\
**Post date:** [October 3, 2016, 5:01pm UTC](https://forum.ionicframework.com/t/rc-0-cannot-import-json-require-is-not-defined/65600/1 "2016-10-03T17:01:27Z")

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I’m trying to import a json file. Until beta.11 it works fine:

> var config = require(‘./config.json’);

But now on RC.0 it compiles okay, but on the browser says:

> Uncaught ReferenceError: require is not defined

What has changed?

I’m having a similar problem, may be related, with other imports like

> on beta.11  
> import \* as \_ from ‘underscore’;

> on RC.0  
> import \_ from ‘underscore’;

What has changed about compilation?

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<div class="post-metadata">

**Author:** ![rapropos](https://sea1.discourse-cdn.com/ionicframework/user_avatar/forum.ionicframework.com/rapropos/32/100227_2.png) [@rapropos](https://forum.ionicframework.com/u/rapropos)\
**Post date:** [October 3, 2016, 7:42pm UTC](https://forum.ionicframework.com/t/rc-0-cannot-import-json-require-is-not-defined/65600/2 "2016-10-03T19:42:11Z")

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> [@sergiomilici](#):
>
> What has changed about compilation?

The bundler. Used to be browserify, now is rollup. For your JSON issue, check out [this](https://github.com/rollup/rollup-plugin-json).

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<div class="post-metadata">

**Author:** ![rapropos](https://sea1.discourse-cdn.com/ionicframework/user_avatar/forum.ionicframework.com/rapropos/32/100227_2.png) [@rapropos](https://forum.ionicframework.com/u/rapropos)\
**Post date:** [October 3, 2016, 10:27pm UTC](https://forum.ionicframework.com/t/rc-0-cannot-import-json-require-is-not-defined/65600/3 "2016-10-03T22:27:41Z")

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It appears that the json rollup plugin is included by default as of ionic-app-scripts 0.0.28.

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**Author:** ![Julienleery](https://sea1.discourse-cdn.com/ionicframework/user_avatar/forum.ionicframework.com/julienleery/32/103682_2.png) [@Julienleery](https://forum.ionicframework.com/u/Julienleery)\
**Post date:** [October 5, 2016, 2:16pm UTC](https://forum.ionicframework.com/t/rc-0-cannot-import-json-require-is-not-defined/65600/4 "2016-10-05T14:16:15Z")

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I have the same problem here, can’t seem to import a json file as a module, event with rollup-plugin-json installed and used in _rollup.config.js_.

> import config from ‘./app.config.json’;

> error TS2307: Cannot find module ‘./app.config.json’.

Anybody else having this issue ?

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<div class="post-metadata">

**Author:** ![sergiomilici](https://sea1.discourse-cdn.com/ionicframework/user_avatar/forum.ionicframework.com/sergiomilici/32/100741_2.png) [@sergiomilici](https://forum.ionicframework.com/u/sergiomilici)\
**Post date:** [October 16, 2016, 12:07am UTC](https://forum.ionicframework.com/t/rc-0-cannot-import-json-require-is-not-defined/65600/5 "2016-10-16T00:07:11Z")

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i’m having that problem too,