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Can't use lodash with this library
See original GitHub issueType of Issue
[x] Bug Report
[ ] Feature Request
Description
Rollup throws a build error when compiling to FESM15
Error thrown:
Running ngc
Compiling to FESM15
BUILD ERROR
'forEach' is not exported by node_modules/lodash/lodash.js
Error: 'forEach' is not exported by node_modules/lodash/lodash.js
at error (/home/talleane/Documents/play-utility/node_modules/rollup/dist/rollup.js:185:14)
at Module.error (/home/talleane/Documents/play-utility/node_modules/rollup/dist/rollup.js:16526:3)
at Module.trace (/home/talleane/Documents/play-utility/node_modules/rollup/dist/rollup.js:16623:10)
at ModuleScope.findVariable (/home/talleane/Documents/play-utility/node_modules/rollup/dist/rollup.js:13965:22)
at Node._bindVariableIfMissing (/home/talleane/Documents/play-utility/node_modules/rollup/dist/rollup.js:12626:31)
at Node.bindNode (/home/talleane/Documents/play-utility/node_modules/rollup/dist/rollup.js:12621:8)
at Node.bind (/home/talleane/Documents/play-utility/node_modules/rollup/dist/rollup.js:11005:8)
at eachChild.child (/home/talleane/Documents/play-utility/node_modules/rollup/dist/rollup.js:11024:34)
at value.forEach.child (/home/talleane/Documents/play-utility/node_modules/rollup/dist/rollup.js:11039:38)
at Array.forEach (<anonymous>)
How To Reproduce
first install lodash
npm install lodash
In your code
import {forEach} from "lodash";
console.log(forEach);
Expected Behaviour
Expected that no error is thrown and a packge is generated
Version Information
ng-packagr: v1.6.0
node: v8.6.0
@angular: v4.2.4
rxjs: 5.4.2
zone.js: 0.8.14
lodash: 4.17.4
Issue Analytics
- State:
- Created 6 years ago
- Comments:11 (2 by maintainers)
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You need to add the correct lodash external to your ngpackagr config. Alternarively, you can use ‘lodash-es’ and the build should succeed.
@Itrulia I was a bit puzzled about this myself, as it isn’t very well documented so far. I did finally manage to solve by adding this to my ng-package.json:
Cheers, Tom