我無法從npm安裝任何節點模塊。npm install socket.io上面的命令導致以下輸出，它無法安裝socket.ionpm http GET https://registry.npmjs.org/socket.ionpm ERR! Error: failed to fetch from registry: socket.ionpm ERR!     at /opt/node0610/lib/node_modules/npm/lib/utils/npm-registry-client/get.js:139:12npm ERR!     at cb (/opt/node0610/lib/node_modules/npm/lib/utils/npm-registry-client/request.js:32:9)npm ERR!     at Request._callback (/opt/node0610/lib/node_modules/npm/lib/utils/npm-registry-client/request.js:137:18)npm ERR!     at Request.callback (/opt/node0610/lib/node_modules/npm/node_modules/request/main.js:109:22)npm ERR!     at Request.<anonymous> (/opt/node0610/lib/node_modules/npm/node_modules/request/main.js:198:58)npm ERR!     at Request.emit (events.js:88:20)npm ERR!     at ClientRequest.<anonymous> (/opt/node0610/lib/node_modules/npm/node_modules/request/main.js:195:10)npm ERR!     at ClientRequest.emit (events.js:67:17)npm ERR!     at CleartextStream.<anonymous> (http.js:1134:11)npm ERR!     at CleartextStream.emit (events.js:67:17)npm ERR! You may report this log at:npm ERR!     <http://github.com/isaacs/npm/issues>npm ERR! or email it to:npm ERR!     <[email protected]>npm ERR! npm ERR! System Linux 2.6.18-194.el5npm ERR! command "node" "/opt/node0610/bin/npm" "install" "socket.io"npm ERR! cwd /opt/node0610/lib/node_modulesnpm ERR! node -v v0.6.10npm ERR! npm -v 1.1.0-3npm ERR! message failed to fetch from registry: socket.ionpm ERR! npm ERR! Additional logging details can be found in:npm ERR!     /opt/node0610/lib/node_modules/npm-debug.lognpm not ok我的NPM版本是：[applmgr@dev node_modules]$ npm --version1.1.0-3我的NodeJS版本是：[applmgr@dev node_modules]$ node --versionv0.6.10