我收到此错误：

npm WARN locking Error: EACCES,open '/Users/SubjectiveEffect/.npm/_locks/bower-e8debc5417026b57.lock'
npm WARN locking     at Error (native)
npm WARN locking  /Users/SubjectiveEffect/.npm/_locks/bower-e8debc5417026b57.lock Failed { [Error: EACCES,open '/Users/SubjectiveEffect/.npm/_locks/bower-e8debc5417026b57.lock']
npm WARN locking   errno: -13,npm WARN locking   code: 'EACCES',npm WARN locking   path: '/Users/SubjectiveEffect/.npm/_locks/bower-e8debc5417026b57.lock' }
npm ERR! Darwin 14.5.0
npm ERR! argv "node" "/usr/local/bin/npm" "install" "-g" "bower"
npm ERR! node v0.12.7
npm ERR! npm  v2.11.3

npm ERR! Attempt to unlock /usr/local/lib/node_modules/bower,which hasn't been locked
npm ERR! 
npm ERR! If you need help,you may report this error at:
npm ERR!     <https://github.com/npm/npm/issues>

npm ERR! Please include the following file with any support request:
npm ERR!     /Users/SubjectiveEffect/myApp/npm-debug.log

我不知道如何解决这个问题.

任何想法？

编辑：我做了一些整理,卸载和重新安装.当我尝试“bower install ngCordova”时,我现在收到此错误

"bower cached git://github.com/driftyco/ng-cordova.git#0.1.12-alpha
bower validate 0.1.12-alpha against git://github.com/driftyco/ng-cordova.git#*
bower ECMDERR Failed to execute "git ls-remote --tags --heads        git://github.com/driftyco/ng-cordova.git",exit code of #69 Agreeing to the    Xcode/iOS license requires admin privileges,please re-run as root via sudo.

Additional error details:
Agreeing to the Xcode/iOS license requires admin privileges,please re-run as root via sudo."

但如果我尝试用sudo运行它,我会被告知：

"bower ESUDO Cannot be run with sudo

Additional error details:
 Since bower is a user command,there is no need to execute it with superuser permissions.
If you're having permission errors when using bower without sudo,please spend a few minutes learning more about how your system should work and make any necessary repairs."

有任何想法吗？