忘记了用npm进行过什么操作了，当再次创建一个文件夹，并在里面执行yo angular时提示如下:
Out of the box I include Bootstrap and some AngularJS recommended modules.
? Would you like to use Sass (with Compass)? Yes
? Would you like to include Bootstrap? Yes
? Would you like to use the Sass version of Bootstrap? Yes
? Which modules would you like to include? angular-animate.js, angular-cookies.js, angular
-resource.js, angular-route.js, angular-sanitize.js, angular-touch.js
create app/styles/main.scss
create app/index.html
create bower.json
identical .bowerrc
create package.json
create Gruntfile.js
create README.md
invoke angular:common:/Users/Kavlez/node_modules/generator-angular/app/index.js
identical .editorconfig
identical .gitattributes
identical .jshintrc
identical .yo-rc.json
identical .gitignore
create test/.jshintrc
create app/.buildignore
create app/.htaccess
create app/404.html
create app/favicon.ico
create app/robots.txt
create app/views/main.html
create app/images/yeoman.png
invoke angular:main:/Users/Kavlez/node_modules/generator-angular/app/index.js
create app/scripts/app.js
invoke angular:controller:/Users/Kavlez/node_modules/generator-angular/app/index.js
create app/scripts/controllers/main.js
create test/spec/controllers/main.js
module.js:338
throw err;
^
Error: Cannot find module 'yeoman-generator'
at Function.Module._resolveFilename (module.js:336:15)
at Function.Module._load (module.js:278:25)
at Module.require (module.js:365:17)
at require (module.js:384:17)
at Object.<anonymous> (/Users/Kavlez/.npm-packages/lib/node_modules/generator-karma/generators/app/index.js:3:18)
at Module._compile (module.js:460:26)
at Object.Module._extensions..js (module.js:478:10)
at Module.load (module.js:355:32)
at Function.Module._load (module.js:310:12)
at Module.require (module.js:365:17)
at require (module.js:384:17)有人遇到过类似情况吗？ 到底是哪里出了问题？
依赖包没安装吧 npm i -d 试试？
解决方法:
npm i -g -d yeoman-generator