我一直在尝试按照Mike Bostock的Let’s Make a Map教程 http://bost.ocks.org/mike/map/安装topojson,我相信我已经设法获得最新版本的Node.js和npm. $ogr2ogr也适用.我对编程和Ubuntu很陌生,并且真诚地感谢npm install topojson -g为什么会出现以下错误.当我用sudo尝试相同的命令时会产生如下错误：npm ERR！注册表错误解析json和gyp ERR！ stack错误：无法安装节点的“pre”版本,请改用–nodedir标志

谢谢！

npm ERR! Error: EACCES,open '/home/natecraft/.npm/7edf76d6-topojson.lock'
npm ERR!  { [Error: EACCES,open '/home/natecraft/.npm/7edf76d6-topojson.lock']
npm ERR!   errno: 3,npm ERR!   code: 'EACCES',npm ERR!   path: '/home/natecraft/.npm/7edf76d6-topojson.lock' }
npm ERR! 
npm ERR! Please try running this command again as root/Administrator.
 
npm ERR! System Linux 3.5.0-23-generic
npm ERR! command "/home/natecraft/.nvm/v0.10.15/bin/node" "/home/natecraft/.nvm/v0.10.15/bin/npm" "install" "topojson" "-g"
npm ERR! cwd /home/natecraft/Downloads/node-latest-install
npm ERR! node -v v0.10.15
npm ERR! npm -v 1.3.5
npm ERR! path /home/natecraft/.npm/7edf76d6-topojson.lock
npm ERR! code EACCES
npm ERR! errno 3
npm ERR! stack Error: EACCES,open '/home/natecraft/.npm/7edf76d6-topojson.lock'
npm ERR! 
npm ERR! Additional logging details can be found in:
npm ERR!     /home/natecraft/Downloads/node-latest-install/npm-debug.log
npm ERR! not ok code 0

$sudo npm install -g topojson