Can't resolve 'strip-ansi' and Can't resolve 'sockjs-client'

[blackcatIan]

Env:
windows 7
nodejs version v6.9.2
nmp version 3.10.9

I download the zip of angular2-seed
and then open it with webstorm

I change the package.json script:
add "prestart":"cnpm install" in order to use nodejs mirror

I run script [prestart] and then run [start]

{
"name": "angular2-seed",
"version": "1.0.0",
"description": "A simple starter Angular2 project",
"scripts": {
"prestart": "cnpm install",
"build": "webpack --progress",
"watch": "npm run build -- --watch",
"server": "webpack-dev-server --inline --progress --port 3000 --content-base src",
"start": "npm run server"
},
"contributors": ["Rob Wormald robwormald@gmail.com", "PatrickJS github@gdi2290.com"],
"license": "MIT",
"dependencies": {
"@angular/common": "~2.2.1",
"@angular/compiler": "~2.2.1",
"@angular/compiler-cli": "~2.2.1",
"@angular/core": "~2.2.1",
"@angular/forms": "~2.2.1",
"@angular/http": "~2.2.1",
"@angular/platform-browser": "~2.2.1",
"@angular/platform-browser-dynamic": "~2.2.1",
"@angular/platform-server": "~2.2.1",
"@angular/router": "~3.2.1",
"@angular/upgrade": "~2.2.1",
"angular2-in-memory-web-api": "0.0.21",
"bootstrap": "^3.3.7",
"core-js": "^2.4.1",
"ie-shim": "^0.1.0",
"reflect-metadata": "^0.1.3",
"rxjs": "5.0.0-beta.12",
"zone.js": "~0.6.26"
},
"devDependencies": {
"@types/node": "^6.0.48",
"angular2-router-loader": "^0.3.4",
"angular2-template-loader": "^0.6.0",
"awesome-typescript-loader": "^2.2.4",
"css-loader": "^0.25.0",
"raw-loader": "^0.5.1",
"to-string-loader": "^1.1.4",
"typescript": "~2.0.10",
"webpack": "2.1.0-beta.27",
"webpack-dev-server": "2.1.0-beta.11",
"webpack-merge": "^0.15.0"
},
"keywords": ["Angular2", "angular2-seed", "official angular 2 seed", "official angular2 seed"],
"repository": {
"type": "git",
"url": "git+https://github.com/angular/angular2-seed.git"
},
"bugs": {
"url": "https://github.com/angular/angular2-seed/issues"
},
"homepage": "https://github.com/angular/angular2-seed#readme"
}

I got Error with

"D:\dev_tool\WebStorm 2016.1\bin\runnerw.exe" D:\dev_tool\nodejs\node.exe D:\dev_tool\nodejs\node_modules\npm\bin\npm-cli.js run-script start

angular2-seed@1.0.0 prestart E:\study_work\angular2-seed-master
cnpm install

(node:14976) fs: re-evaluating native module sources is not supported. If you are using the graceful-fs module, please update it to a more recent version.

angular2-seed@1.0.0 start E:\study_work\angular2-seed-master
npm run server

angular2-seed@1.0.0 server E:\study_work\angular2-seed-master
webpack-dev-server --inline --progress --port 3000 --content-base src

0% compiling10% building modules 0/1 modules 1 active multi main
...........
Project is running at http://localhost:3000/
webpack output is served from /
Content not from webpack is served from E:\study_work\angular2-seed-master\src
404s will fallback to /index.html
...........
...........
...........
...........
...........
...........
...........
...........
[704] (webpack)//node-libs-browser//url/util.js 314 bytes {0} [built]
[705] .//zone.js/dist/long-stack-trace-zone.js 5.49 kB {0} [built]
[706] .//zone.js/dist/zone.js 58.2 kB {0} [built]
[707] multi main 40 bytes {0} [built]

ERROR in (webpack)-dev-server/client?http://localhost:3000
Module not found: Error: Can't resolve 'strip-ansi' in 'E:\study_work\angular2-seed-master\node_modules\webpack-dev-server\client'
@ (webpack)-dev-server/client?http://localhost:3000 3:16-37
@ multi main

ERROR in (webpack)-dev-server/client/socket.js
Module not found: Error: Can't resolve 'sockjs-client' in 'E:\study_work\angular2-seed-master\node_modules\webpack-dev-server\client'
@ (webpack)-dev-server/client/socket.js 1:13-37
@ (webpack)-dev-server/client?http://localhost:3000
@ multi main
webpack: bundle is now VALID.

How can I fix it?

[blackcatIan]

It's seems there is some problem with cnpm.
I deleted node_modules,and try to use nrm
My friend suggest me to use "nrm" instead of "cnpm".It just change the registry and use "npm" command as usual.
I tried and it worked!