Daniel Mattsson Daniel Mattsson - 5 months ago 397
AngularJS Question

Angular2 - Angular-CLI installing lodash - Cannot find module

Mac OSX El capitan | angular-cli: 0.1.0 | node: 5.4.0 | os: darwin x64

I try to install a 3rd party npm module according to the angular-cli wiki: https://github.com/angular/angular-cli/wiki/3rd-party-libs but fail. I've been struggling with this for days now and would greatly appreciate any help.

Steps to get the error:

ng new lodashtest3
cd lodashtest3
npm install lodash --save
typings install lodash --ambient --save


angular-cli-build.json:

module.exports = function(defaults) {
return new Angular2App(defaults, {
vendorNpmFiles: [
...
'lodash/**/*.js'
]
});
};

ng build

(lodash gets correctly added in dist/vendor)

system-config.ts:

/** Map relative paths to URLs. */
const map: any = {
'lodash': 'vendor/lodash/lodash.js'
};

/** User packages configuration. */
const packages: any = {
'lodash': {
format: 'cjs'
}
};


(all according to spec in
https://github.com/angular/angular-cli/wiki/3rd-party-libs)
Note - I've tried all config settings I can think of here, all giving the same result.

lodashtest3.component.ts:
import * as _ from 'lodash';


ng build


Could not start watchman; falling back to NodeWatcher for file system events.
Visit http://ember-cli.com/user-guide/#watchman for more info.
Build failed.
The Broccoli Plugin: [BroccoliTypeScriptCompiler] failed with:
Error: Typescript found the following errors:
/Users/danielmattsson/git/lodashtest3/tmp/broccoli_type_script_compiler-input_base_path-g2lDIaq6.tmp/0/src/app/lodashtest3.component.ts (2, 20): Cannot find module 'lodash'.
at BroccoliTypeScriptCompiler._doIncrementalBuild (/Users/danielmattsson/git/lodashtest3/node_modules/angular-cli/lib/broccoli/broccoli-typescript.js:115:19)
at BroccoliTypeScriptCompiler.build (/Users/danielmattsson/git/lodashtest3/node_modules/angular-cli/lib/broccoli/broccoli-typescript.js:43:10)
at /Users/danielmattsson/git/lodashtest3/node_modules/angular-cli/node_modules/broccoli-caching-writer/index.js:152:21
at lib$rsvp$$internal$$tryCatch (/Users/danielmattsson/git/lodashtest3/node_modules/angular-cli/node_modules/broccoli-caching-writer/node_modules/rsvp/dist/rsvp.js:1036:16)
at lib$rsvp$$internal$$invokeCallback (/Users/danielmattsson/git/lodashtest3/node_modules/angular-cli/node_modules/broccoli-caching-writer/node_modules/rsvp/dist/rsvp.js:1048:17)
at lib$rsvp$$internal$$publish (/Users/danielmattsson/git/lodashtest3/node_modules/angular-cli/node_modules/broccoli-caching-writer/node_modules/rsvp/dist/rsvp.js:1019:11)
at lib$rsvp$asap$$flush (/Users/danielmattsson/git/lodashtest3/node_modules/angular-cli/node_modules/broccoli-caching-writer/node_modules/rsvp/dist/rsvp.js:1198:9)
at nextTickCallbackWith0Args (node.js:456:9)
at process._tickCallback (node.js:385:13)

The broccoli plugin was instantiated at:
at BroccoliTypeScriptCompiler.Plugin (/Users/danielmattsson/git/lodashtest3/node_modules/angular-cli/node_modules/broccoli-caching-writer/node_modules/broccoli-plugin/index.js:10:31)
at BroccoliTypeScriptCompiler.CachingWriter [as constructor] (/Users/danielmattsson/git/lodashtest3/node_modules/angular-cli/node_modules/broccoli-caching-writer/index.js:21:10)
at BroccoliTypeScriptCompiler (/Users/danielmattsson/git/lodashtest3/node_modules/angular-cli/lib/broccoli/broccoli-typescript.js:26:49)
at Angular2App._getTsTree (/Users/danielmattsson/git/lodashtest3/node_modules/angular-cli/lib/broccoli/angular2-app.js:280:18)
at Angular2App._buildTree (/Users/danielmattsson/git/lodashtest3/node_modules/angular-cli/lib/broccoli/angular2-app.js:101:23)
at new Angular2App (/Users/danielmattsson/git/lodashtest3/node_modules/angular-cli/lib/broccoli/angular2-app.js:42:23)
at module.exports (/Users/danielmattsson/git/lodashtest3/angular-cli-build.js:6:10)
at Class.module.exports.Task.extend.setupBroccoliBuilder (/Users/danielmattsson/git/lodashtest3/node_modules/angular-cli/node_modules/angular-cli/lib/models/builder.js:55:19)
at Class.module.exports.Task.extend.init (/Users/danielmattsson/git/lodashtest3/node_modules/angular-cli/node_modules/angular-cli/lib/models/builder.js:89:10)
at new Class (/Users/danielmattsson/git/lodashtest3/node_modules/angular-cli/node_modules/angular-cli/node_modules/core-object/core-object.js:18:12)
at Class.module.exports.Task.extend.run (/Users/danielmattsson/git/lodashtest3/node_modules/angular-cli/node_modules/angular-cli/lib/tasks/build.js:15:19)
at /Users/danielmattsson/git/lodashtest3/node_modules/angular-cli/node_modules/angular-cli/lib/commands/build.js:32:24
at lib$rsvp$$internal$$tryCatch (/Users/danielmattsson/git/lodashtest3/node_modules/angular-cli/node_modules/angular-cli/node_modules/rsvp/dist/rsvp.js:1036:16)
at lib$rsvp$$internal$$invokeCallback (/Users/danielmattsson/git/lodashtest3/node_modules/angular-cli/node_modules/angular-cli/node_modules/rsvp/dist/rsvp.js:1048:17)
at /Users/danielmattsson/git/lodashtest3/node_modules/angular-cli/node_modules/angular-cli/node_modules/rsvp/dist/rsvp.js:331:11
at lib$rsvp$asap$$flush (/Users/danielmattsson/git/lodashtest3/node_modules/angular-cli/node_modules/angular-cli/node_modules/rsvp/dist/rsvp.js:1198:9)


EDIT: more information according to comments below

dist/index.html:

<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>Lodashtest3</title>
<base href="/">

<link rel="icon" type="image/x-icon" href="favicon.ico">
<meta name="viewport" content="width=device-width, initial-scale=1">

<!-- Service worker support is disabled by default.
Install the worker script and uncomment to enable.
Only enable service workers in production.
<script type="text/javascript">
if ('serviceWorker' in navigator) {
navigator.serviceWorker.register('/worker.js').catch(function(err) {
console.log('Error installing service worker: ', err);
});
}
</script>
-->
</head>
<body>
<lodashtest3-app>Loading...</lodashtest3-app>

<script src="vendor/es6-shim/es6-shim.js"></script>
<script src="vendor/reflect-metadata/Reflect.js"></script>
<script src="vendor/systemjs/dist/system.src.js"></script>
<script src="vendor/zone.js/dist/zone.js"></script>

<script>
System.import('system-config.js').then(function () {
System.import('main');
}).catch(console.error.bind(console));
</script>
</body>
</html>

Answer

add this line in src/index.html

  <script src="/vendor/lodash/lodash.js" type="text/javascript"></script>

and in your component where you want to use , try this way

declare var _:any;

@Component({
})
export class YourComponent {
  ngOnInit() {
     console.log(_.chunk(['a', 'b', 'c', 'd'], 2));
  }
}

I tried straight away , it worked for me

Comments