在win7系统下（64位），安装yeoman出现状况。grunt和bower都安装成功。

C:\Users\Administrator>npm install -g yo

spawn-sync@1.0.11 postinstall C:\Users\Administrator\AppData\Roaming\npm\node_
modules\yo\node_modules\cross-spawn\node_modules\spawn-sync
node postinstall

C:\Users\Administrator\AppData\Roaming\npm\yo -> C:\Users\Administrator\AppData\
Roaming\npm\node_modules\yo\lib\cli.js

yo@1.4.7 postinstall C:\Users\Administrator\AppData\Roaming\npm\node_modules\y
o
yodoctor

Yeoman Doctor
Running sanity checks on your system

√ Global configuration file is valid
√ NODE_PATH matches the npm root
√ Node.js version
√ No .bowerrc file in home directory
√ No .yo-rc.json file in home directory
√ npm version

Everything looks all right!
npm WARN unmet dependency C:\Users\Administrator\AppData\Roaming\npm\node_module
s\yeoman requires bower@'~0.3.0' but will load
npm WARN unmet dependency C:\Users\Administrator\AppData\Roaming\npm\node_module
s\bower,
npm WARN unmet dependency which is version 1.4.1
yo@1.4.7 C:\Users\Administrator\AppData\Roaming\npm\node_modules\yo
├── titleize@1.0.0
├── array-uniq@1.0.2
├── figures@1.3.5
├── user-home@1.1.1
├── opn@1.0.2
├── humanize-string@1.0.1 ( decamelize@1.0.0 )
├── async@1.3.0
├── yeoman-character@1.0.1 ( supports-color@1.3.1 )
├── string-length@1.0.0 ( strip-ansi@2.0.1 )
├── sort-on@1.2.2 ( arrify@1.0.0 , dot-prop@2.2.0 )
├── chalk@1.1.0 ( escape-string-regexp@1.0.3 , supports-color@2.0.0 , ansi-style
s@2.1.0 , has-ansi@2.0.0 , strip-ansi@3.0.0 )
├── findup@0.1.5 ( commander@2.1.0 , colors@0.6.2 )
├── repeating@1.1.3 ( is-finite@1.0.1 )
├── meow@3.3.0 ( object-assign@3.0.0 , minimist@1.1.1 , indent-string@1.2.1 , cam
elcase-keys@1.0.0 )
├── yosay@1.0.4 ( ansi-regex@1.1.1 , ansi-styles@2.1.0 , word-wrap@1.0.3 , strip-
ansi@2.0.1 , pad-component@0.0.1 , taketalk@1.0.0 , minimist@1.1.1 )
├── root-check@1.0.0 ( sudo-block@1.2.0 , downgrade-root@1.1.0 )
├── configstore@1.2.0 ( os-tmpdir@1.0.1 , object-assign@3.0.0 , graceful-fs@4.1 .
2, uuid@2.0.1 , osenv@0.1.3 , user-home@2.0.0 , xdg-basedir@2.0.0 , mkdirp@0.5.1 )
├── update-notifier@0.5.0 ( is-npm@1.0.0 , latest-version@1.0.1 , semver-diff@2.
0.0)
├── npm-keyword@1.2.0 ( registry-url@3.0.3 )
├── package-json@1.2.0 ( registry-url@3.0.3 )
├── got@3.3.0 ( lowercase-keys@1.0.0 , is-stream@1.0.1 , timed-out@2.0.0 , is-red
irect@1.0.0 , prepend-http@1.0.1 , object-assign@2.1.1 , nested-error-stacks@1.0.0 ,
statuses@1.2.1 , infinity-agent@2.0.3 , duplexify@3.4.2 , read-all-stream@2.2.0 )
├── fullname@1.1.0 ( npmconf@2.1.2 )
├── cross-spawn@0.4.1 ( lru-cache@2.6.5 , spawn-sync@1.0.11 )
├── yeoman-environment@1.2.6 ( log-symbols@1.0.2 , escape-string-regexp@1.0.3 ,
diff@1.4.0 , text-table@0.2.0 , untildify@2.1.0 , debug@2.2.0 , mem-fs@1.1.0 , globby
@2.1.0, grouped-queue@0.3.0 )
├── insight@0.6.0 ( object-assign@2.1.1 , lodash.debounce@3.1.1 , async@0.9.2 , o
s-name@1.0.3 , tough-cookie@1.2.0 , request@2.58.0 )
├── lodash@3.10.0
├── inquirer@0.8.5 ( ansi-regex@1.1.1 , cli-width@1.0.1 , through@2.3.8 , readlin
e2@0.1.1 , rx@2.5.3 )
└── yeoman-doctor@1.4.0 ( object-values@1.0.0 , log-symbols@1.0.2 , each-async@1
.1.1, semver@4.3.6 , bin-version-check@2.1.0 , twig@0.8.2 )

C:\Users\Administrator>yo -v
? 'Allo! What would you like to do?
Run a generator
Bower
──────────────
Update your generators
Install a generator

Find some help
Get me out of here!
──────────────