node.js-express报错：'express' 不是内部或外部命令，也不是可运行的程序 的解决方案

问题：

C:\Users\Dai_YuanDa>express --version

'express' 不是内部或外部命令，也不是可运行的程序

或批处理文件。

原因：版本问题

解决方案:

方式一：执行 npm install -g express-generator

方式二：执行 npm install -g express@3.5.0 后

C:\Users\Dai_YuanDa>npm install -g express@3.5.0

npm WARN deprecated connect@2.14.1: connect 2.x series is deprecated

npm WARN deprecated static-favicon@1.0.0: use serve-favicon module

C:\Users\Dai_YuanDa\AppData\Roaming\npm\express -> C:\Users\Dai_YuanDa\AppData\R

oaming\npm\node_modules\express\bin\express

- depd@1.1.1 node_modules\express\node_modules\depd

- destroy@1.0.4 node_modules\express\node_modules\destroy

- ee-first@1.1.1 node_modules\express\node_modules\ee-first

- encodeurl@1.0.1 node_modules\express\node_modules\encodeurl

- escape-html@1.0.3 node_modules\express\node_modules\escape-html

- etag@1.8.1 node_modules\express\node_modules\etag

- forwarded@0.1.1 node_modules\express\node_modules\forwarded

- ipaddr.js@1.4.0 node_modules\express\node_modules\ipaddr.js

- media-typer@0.3.0 node_modules\express\node_modules\media-typer

- mime-db@1.30.0 node_modules\express\node_modules\mime-db

- mime-types@2.1.17 node_modules\express\node_modules\mime-types

- ms@2.0.0 node_modules\express\node_modules\ms

- on-finished@2.3.0 node_modules\express\node_modules\on-finished

- parseurl@1.3.2 node_modules\express\node_modules\parseurl

- setprototypeof@1.0.3 node_modules\express\node_modules\setprototypeof

- statuses@1.3.1 node_modules\express\node_modules\statuses

- http-errors@1.6.2 node_modules\express\node_modules\http-errors

- unpipe@1.0.0 node_modules\express\node_modules\unpipe

- accepts@1.3.4 node_modules\express\node_modules\accepts

- array-flatten@1.1.1 node_modules\express\node_modules\array-flatten

- content-disposition@0.5.2 node_modules\express\node_modules\content-dispositio

n

- content-type@1.0.4 node_modules\express\node_modules\content-type

- finalhandler@1.0.4 node_modules\express\node_modules\finalhandler

- path-to-regexp@0.1.7 node_modules\express\node_modules\path-to-regexp

- proxy-addr@1.1.5 node_modules\express\node_modules\proxy-addr

- type-is@1.6.15 node_modules\express\node_modules\type-is

- vary@1.1.1 node_modules\express\node_modules\vary

C:\Users\Dai_YuanDa\AppData\Roaming\npm

`-- express@3.5.0

+-- buffer-crc32@0.2.1

+-- commander@1.3.2

| `-- keypress@0.1.0

+-- connect@2.14.1

| +-- basic-auth-connect@1.0.0

| +-- bytes@0.2.1

| +-- compression@1.0.0

| | +-- compressible@1.0.0

| | `-- negotiator@0.3.0

| +-- connect-timeout@1.0.0

| +-- cookie-parser@1.0.1

| | `-- cookie@0.1.0

| +-- csurf@1.0.0

| | `-- uid2@0.0.3

| +-- errorhandler@1.0.0

| +-- express-session@1.0.2

| | +-- cookie@0.1.0

| | `-- debug@0.7.4

| +-- method-override@1.0.0

| +-- morgan@1.0.0

| +-- multiparty@2.2.0

| | +-- readable-stream@1.1.14

| | | +-- core-util-is@1.0.2

| | | +-- isarray@0.0.1

| | | `-- string_decoder@0.10.31

| | `-- stream-counter@0.2.0

| +-- pause@0.0.1

| +-- qs@0.6.6

| +-- raw-body@1.1.3

| +-- response-time@1.0.0

| +-- serve-index@1.0.1

| | +-- batch@0.5.0

| | `-- negotiator@0.4.2

| +-- serve-static@1.0.2

| +-- static-favicon@1.0.0

| `-- vhost@1.0.0

+-- cookie@0.1.1

+-- cookie-signature@1.0.3

+-- debug@0.8.1

+-- fresh@0.2.2

+-- merge-descriptors@0.0.2

+-- methods@0.1.0

+-- mkdirp@0.3.5

+-- range-parser@1.0.0

`-- send@0.2.0

`-- mime@1.2.11

2.再执行命令 express -v

C:\Users\Dai_YuanDa>express - v

create : -

create : -/package.json

create : -/app.js

create : -/public

create : -/routes

create : -/routes/index.js

create : -/routes/user.js

create : -/views

create : -/views/layout.jade

create : -/views/index.jade

create : -/public/javascripts

create : -/public/stylesheets

create : -/public/stylesheets/style.css

create : -/public/images

install dependencies:

$ cd - && npm install

run the app:

$ node app