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I can't include version from package.json in angular's library but it works in a project. I use import like that:

import { version } from '../../package.json';

and get the following error:

ERROR: error TS6059: File '/Users/.../library/package.json' is not under 'rootDir' '/Users/.../library/src'. 'rootDir' is expected to contain all source files.

An unhandled exception occurred: error TS6059: File '/Users/.../library/package.json' is not under 'rootDir' '/Users/.../library/src'. 'rootDir' is expected to contain all source files.

See "/private/var/folders/tw/z8v0wkt50g5876740n99hzy00000gp/T/ng-0JDpjC/angular-errors.log" for further details.

The way through require includes the whole package.json which incur security risks. import { version } from '../../package.json' includes only the version number but works for angular applications not libraries.

Maxim Palenov
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    Does this answer your question? [How to display the app version in Angular?](https://stackoverflow.com/questions/34907682/how-to-display-the-app-version-in-angular) – Mark S. Dec 17 '19 at 16:11
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    Unfortunately not, I'm aware about that way but it doesn't for angular libraries. – Maxim Palenov Dec 18 '19 at 08:59
  • This solved my problem: https://stackoverflow.com/a/63294323 Consider `resolveJsonModule` needs to be added to `tsconfig.app.json`, not `tsconfig.json`. – maganap Nov 30 '20 at 18:08

2 Answers2

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You can import it like a regular module:

import { version } from 'package.json'

But be sure to add "resolveJsonModule": true to compilerOptions inside your tsconfig.json.

Josef
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    As of angular 10, consider `resolveJsonModule` needs to be added to `tsconfig.app.json`, not to `tsconfig.json` – maganap Nov 30 '20 at 18:09
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    I'm in Angular 6 and using this approach yields an issue with doing the build-prod or aot. See: https://stackoverflow.com/questions/58931483/error-building-with-ng-build-prod-fine-without-prod-flag-and-ng-serve – edjm Dec 31 '20 at 12:33
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    Getting this error: Should not import the named export 'version' (imported as 'version') from default-exporting module (only default export is available soon) – Rafael Guimaraes Siqueira Aug 25 '21 at 19:20
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What about this code : 

const packageJson = require('../../package.json');
console.log(packageJson.version);
Benjamin Barbé
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    The way through `require` includes the whole `package.json` which incur security risks. `import { version } from '../../package.json'` includes only the version number but works for angular applications not libraries. – Maxim Palenov Dec 18 '19 at 08:58