Angular-cli: building server in universal story - Error: Can't resolve 'ts-loader'

[elpdrc]

Bug Report or Feature Request (mark with an x)

- [x] bug report -> please search issues before submitting
- [ ] feature request

Versions.

@angular/cli: 1.4.5
node: 8.6.0
os: linux x64
@angular/animations: 4.4.4
@angular/common: 4.4.4
@angular/compiler: 4.4.4
@angular/core: 4.4.4
@angular/forms: 4.4.4
@angular/http: 4.4.4
@angular/platform-browser: 4.4.4
@angular/platform-browser-dynamic: 4.4.4
@angular/platform-server: 4.4.4
@angular/router: 4.4.4
@angular/cli: 1.4.5
@angular/compiler-cli: 4.4.4
@angular/language-service: 4.4.4
typescript: 2.3.4

Repro steps.

1. Follow the universal story to setup existing angular-cli project to universal.
2. Run the command to build the universal server.
   webpack --config webpack.server.config.js --progress --colors

The log given by the failure.

webpack --config webpack.server.config.js --progress --colors

Hash: eb41d9b8aea4d4f2ca58
Version: webpack 3.6.0
Time: 32ms

ERROR in Entry module not found: Error: Can't resolve 'ts-loader' in
npm ERR! code ELIFECYCLE
npm ERR! errno 2
npm ERR! [email protected] webpack:server: webpack --config webpack.server.config.js --progress --colors
npm ERR! Exit status 2
npm ERR!
npm ERR! Failed at the [email protected] webpack:server script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR! /home/eyal/.npm/_logs/2017-10-11T05_21_36_973Z-debug.log
eyal@eyal-ThinkPad-X270:~/poc$ npm i ts-loader
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: [email protected] (node_modules/fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for [email protected]: wanted {"os":"darwin","arch":"any"} (current: {"os":"linux","arch":"x64"})

• [email protected]
  added 115 packages in 6.207s

[elpdrc]

I have solved this by doing npm i ts-loader. Just wanted to know if this is the right course of action and/or something in the universal doc is missing.

[hiepxanh]

agree, doc is misssing

[MarkPieszak]

@elpdrc @hiepxanh via #8012
Thanks for pointing this one out, I must of overlooked it! 👍

[wis]

as @elpdrc said, installing ts-loader like that, can fix it.
I think that's why I got this issue, the CLI has ts-loader as a dependency, and I installed a previous version, 3.0.x the CLI depends on a later version (CLI 5.0.0 -> 3.1.1).

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