当我试图安装软件包时，我会遇到一大堆错误（需要帮助，如果你给出命令，请解释这些命令的实际含义以及它们的作用？）提前感谢
npm安装-g-yo-gulp-bower
npm ERR! tar.unpack untar error /Users/Research/.npm/yo/1.7.0/package.tgz
npm ERR! tar.unpack untar error /Users/Research/.npm/gulp/3.9.1/package.tgz
npm ERR! Darwin 15.0.0
npm ERR! argv "/usr/local/bin/node" "/usr/local/bin/npm" "install" "-g" "yo" "gulp" "bower"
npm ERR! node v4.2.6
npm ERR! npm v2.14.12
npm ERR! path /usr/local/lib/node_modules/yo
npm ERR! code EACCES
npm ERR! errno -13
npm ERR! syscall mkdir
npm ERR! Error: EACCES: permission denied, mkdir '/usr/local/lib/node_modules/yo'
npm ERR! at Error (native)
npm ERR! { [Error: EACCES: permission denied, mkdir '/usr/local/lib/node_modules/yo']
npm ERR! errno: -13,
npm ERR! code: 'EACCES',
npm ERR! syscall: 'mkdir',
npm ERR! path: '/usr/local/lib/node_modules/yo',
npm ERR! fstream_type: 'Directory',
npm ERR! fstream_path: '/usr/local/lib/node_modules/yo',
npm ERR! fstream_class: 'DirWriter',
npm ERR! fstream_stack:
npm ERR! [ '/usr/local/lib/node_modules/npm/node_modules/fstream/lib/dir-writer.js:35:25',
npm ERR! '/usr/local/lib/node_modules/npm/node_modules/mkdirp/index.js:47:53',
npm ERR! 'FSReqWrap.oncomplete (fs.js:82:15)' ] }
npm ERR!
npm ERR! Please try running this command again as root/Administrator.
npm ERR! error rolling back Error: EACCES: permission denied, unlink '/usr/local/bin/bower'
npm ERR! error rolling back at Error (native)
npm ERR! error rolling back { [Error: EACCES: permission denied, unlink '/usr/local/bin/bower']
npm ERR! error rolling back errno: -13,
npm ERR! error rolling back code: 'EACCES',
npm ERR! error rolling back syscall: 'unlink',
npm ERR! error rolling back path: '/usr/local/bin/bower' }
npm ERR! Please include the following file with any support request:
npm ERR! /Applications/MAMP/htdocs/hackathon/para/HA-1.3.0/npm-debug.log
bower安装
bower not-cached https://github.com/angular/bower-angular.git#1.5.0
bower resolve https://github.com/angular/bower-angular.git#1.5.0
bower not-cached https://github.com/angular/bower-angular-aria.git#1.5.0
bower resolve https://github.com/angular/bower-angular-aria.git#1.5.0
bower not-cached https://github.com/angular/bower-angular-animate.git#1.5.0
bower resolve https://github.com/angular/bower-angular-animate.git#1.5.0
bower not-cached https://github.com/angular/bower-angular-cookies.git#1.5.0
bower resolve https://github.com/angular/bower-angular-cookies.git#1.5.0
bower not-cached https://github.com/angular/bower-material.git#1.0.5
bower resolve https://github.com/angular/bower-material.git#1.0.5
bower not-cached https://github.com/angular/bower-angular-messages.git#1.5.0
bower resolve https://github.com/angular/bower-angular-messages.git#1.5.0
bower not-cached https://github.com/angular/bower-angular-resource.git#1.5.0
bower resolve https://github.com/angular/bower-angular-resource.git#1.5.0
bower not-cached https://github.com/angular/bower-angular-sanitize.git#1.5.0
bower resolve https://github.com/angular/bower-angular-sanitize.git#1.5.0
bower not-cached https://github.com/PascalPrecht/bower-angular-translate.git#2.9.0
bower resolve https://github.com/PascalPrecht/bower-angular-translate.git#2.9.0
bower not-cached https://github.com/PascalPrecht/bower-angular-translate-loader-partial.git#2.9.0
bower resolve https://github.com/PascalPrecht/bower-angular-translate-loader-partial.git#2.9.0
bower not-cached https://github.com/angular-ui/angular-ui-router-bower.git#0.2.18
bower resolve https://github.com/angular-ui/angular-ui-router-bower.git#0.2.18
bower not-cached https://github.com/moment/moment.git#2.11.2
bower resolve https://github.com/moment/moment.git#2.11.2
bower not-cached https://github.com/jquery/jquery-dist.git#2.2.0
bower resolve https://github.com/jquery/jquery-dist.git#2.2.0
bower not-cached https://github.com/johnpapa/toastr-bower.git#2.1.2
bower resolve https://github.com/johnpapa/toastr-bower.git#2.1.2
bower not-cached https://github.com/hgoebl/mobile-detect.js.git#1.3.1
bower resolve https://github.com/hgoebl/mobile-detect.js.git#1.3.1
bower not-cached https://github.com/noraesae/perfect-scrollbar-bower.git#0.6.10
bower resolve https://github.com/noraesae/perfect-scrollbar-bower.git#0.6.10
bower not-cached https://github.com/angular/bower-angular-mocks.git#1.5.0
bower resolve https://github.com/angular/bower-angular-mocks.git#1.5.0
bower ECMDERR Failed to execute "git ls-remote --tags --heads https://github.com/angular/bower-angular.git", exit code of #1 xcrun: error: active developer path ("/Volumes/PARTH PASSPORT/apps/oct 20/Xcode.app/Contents/Developer") does not exist, use `xcode-select --switch path/to/Xcode.app` to specify the Xcode that you wish to use for command line developer tools (or see `man xcode-select`)
Additional error details:
xcrun: error: active developer path ("/Volumes/PARTH PASSPORT/apps/oct 20/Xcode.app/Contents/Developer") does not exist, use `xcode-select --switch path/to/Xcode.app` to specify the Xcode that you wish to use for command line developer tools (or see `man xcode-select`)
您没有使用当前用户修改全局节点模块安装的正确权限。
尝试使用sudo权限运行命令。
sudo npm install -g yo gulp bower
您可能还需要以管理员权限运行bower。