当我给出命令时,npm install express它引发以下错误。在Ubuntu机器上
gaurav@gaurav-Mini-Monster:~/TestScripts$ sudo npm install -g express npm ERR! error installing express@3.3.3 Error: Unsupported npm ERR! error installing express@3.3.3 at checkEngine (/usr/local/lib/node_modules/npm/lib/install.js:493:14) npm ERR! error installing express@3.3.3 at Array.0 (/usr/local/lib/node_modules/npm/node_modules/slide/lib/bind-actor.js:15:8) npm ERR! error installing express@3.3.3 at LOOP (/usr/local/lib/node_modules/npm/node_modules/slide/lib/chain.js:15:13) npm ERR! error installing express@3.3.3 at chain (/usr/local/lib/node_modules/npm/node_modules/slide/lib/chain.js:20:4) npm ERR! error installing express@3.3.3 at installOne_ (/usr/local/lib/node_modules/npm/lib/install.js:470:3) npm ERR! error installing express@3.3.3 at installOne (/usr/local/lib/node_modules/npm/lib/install.js:411:3) npm ERR! error installing express@3.3.3 at /usr/local/lib/node_modules/npm/lib/install.js:347:9 npm ERR! error installing express@3.3.3 at /usr/local/lib/node_modules/npm/node_modules/slide/lib/async-map.js:54:35 npm ERR! error installing express@3.3.3 at Array.forEach (native) npm ERR! error installing express@3.3.3 at /usr/local/lib/node_modules/npm/node_modules/slide/lib/async-map.js:54:11 npm ERR! error rolling back express@3.3.3 Error: UNKNOWN, Unknown error '/usr/local/lib/node_modules/express' npm ERR! Unsupported npm ERR! Not compatible with your version of node/npm: connect@2.8.3 npm ERR! Required: {"node":">= 0.8.0"} npm ERR! Actual: {"npm":"1.0.106","node":"0.5.11-pre"} npm ERR! npm ERR! System Linux 3.2.0-48-generic-pae npm ERR! command "node" "/usr/local/bin/npm" "install" "-g" "express" npm ERR! cwd /home/gaurav/TestScripts npm ERR! node -v v0.5.11-pre npm ERR! npm -v 1.0.106 npm ERR! code ENOTSUP npm ERR! npm ERR! Additional logging details can be found in: npm ERR! /home/gaurav/TestScripts/npm-debug.log npm not ok
I also tried
sudo npm install express npm install -g express sudo npm install -g express
Nothing works.
Node非常容易手动安装。我也喜欢这样做,因为切换版本非常容易。
这也很棒,因为您不需要向添加一些外部软件包存储库apt,并且在节点发布新版本时不必等待这些存储库更新。您可以在发布更新后立即获得更新。
# make a `~/.nodes/ folder mkdir -p ~/.nodes && cd ~/.nodes # download the binaries from nodejs.org # in this case, here's the linux version curl -O http://nodejs.org/dist/v0.10.12/node-v0.10.12-linux-x64.tar.gz # extract tar -xzf node-v0.10.12-linux-x64.tar.gz # rename folder to 0.10.12 mv node-v0.10.12-linux-x64 0.10.12 # create a `current` symlink ln -s 0.10.12 current # prepend ~/.nodes/bin to your path # you'll want to save this in ~/.bashrc or ~/.zshrc or something export PATH="~/.nodes/current/bin:$PATH" # cleanup rm ~/.nodes/node-v0.10.12-linux-x64.tar.gz
最好的部分是,您可以为其他任何版本 的节点重复该模式,随时更改current符号链接以切换 您正在运行的版本,然后您就可以开始使用
% node --version v0.10.12 % npm --version 1.2.32 # switch versions to (e.g.) 0.10.5 % cd ~/.nodes && rm current && ln -s 0.10.5 current % node --version v0.10.5 % npm --version 1.2.18
编写可执行脚本时的其他指针
制作可执行文件
% touch ~/somefile && chmod +x ~/someifle && nano ~/somefile
File contents
#!/usr/bin/env node console.log(process.version);
Run it
% ./somefile v0.10.12