错误安装coffeescript在mac 10.7.2 [英] error installing coffeescript on mac 10.7.2

问题描述

Node和npm都已安装并且是最新的，但是在尝试安装coffeescript时会遇到这个错误。我仍然是新编程，所以任何建议将非常感谢。

Node and npm are both installed and up to date but keep getting this error when trying to install coffeescript. I am still new to programming so any advice would be greatly appreciated.

test-macbook:~ Test$ npm -v
1.1.0-3
test-macbook:~ Test$ node -v
v0.6.8
test-macbook:~ Test$ npm install -g coffee-script
npm http GET https://registry.npmjs.org/coffee-script
npm http 304 https://registry.npmjs.org/coffee-script
npm ERR! Could not create /usr/local/lib/node_modules/___coffee-script.npm
npm ERR! error installing coffee-script@1.2.0

npm ERR! Error: EACCES, permission denied '/usr/local/lib/node_modules/___coffee-script.npm'
npm ERR! 
npm ERR! Please try running this command again as root/Administrator.
npm ERR! 
npm ERR! System Darwin 11.2.0
npm ERR! command "node" "/usr/local/bin/npm" "install" "-g" "coffee-script"
npm ERR! cwd /Users/Dylan
npm ERR! node -v v0.6.8
npm ERR! npm -v 1.1.0-3
npm ERR! path /usr/local/lib/node_modules/___coffee-script.npm
npm ERR! code EACCES
npm ERR! message EACCES, permission denied '/usr/local/lib/node_modules/___coffee-script.npm'
npm ERR! errno {}
npm ERR! 
npm ERR! Additional logging details can be found in:
npm ERR!     /Users/Dylan/npm-debug.log
npm not ok

推荐答案

错误讯息相当清楚：

npm ERR! Error: EACCES, permission denied '/usr/local/lib/node_modules/___coffee-script.npm'
npm ERR! 
npm ERR! Please try running this command again as root/Administrator.

您不能将它安装在 / usr / local / lib / node_modules ，因为您没有必要的权限。尝试使用 sudo ：

You can't install it in /usr/local/lib/node_modules because you don't have the necessary permissions. Try using sudo:

dylan-hermans-macbook:~ sudo npm install -g coffee-script

---

不使用 sudo ，因为软件包可以运行任意命令，因此 sudo npm install 很危险。他建议将 / usr / local 的所有权切换到您的用户。我认为这是可怕的建议，只是给你一个假的安全感：如果一个包可以运行任意命令，那么它可以搞乱你的主目录（包括所有的个人数据，可执行文件，配置和启动文件，...） sudo 或拥有 / usr / local ，所以不使用 sudo 真的不为你做很多。如果你不信任一个包，那么不要安装它;如果你不信任一个包，你怎么能甚至使用它？ / usr / local 树仍然是一个系统目录树，OSX仍然是多用户操作系统。

---

The npm author recommends not using sudo because packages can run arbitrary commands so sudo npm install is dangerous. He suggests switching the ownership of /usr/local to your user. I think that's horribly advice that just gives you a false sense of security: if a package can run arbitrary commands then it can mess with your home directory (including all your personal data, executables, config and startup files, ...) regardless of sudo or who owns /usr/local so not using sudo really doesn't do much for you. If you don't trust a package then don't install it; if you don't trust a package then how can you even use it? The /usr/local tree is still a system directory tree and OSX is still a multi-user operating system.

IMO一个更好的解决方案是双重的：

IMO a much better solution is twofold:

1. 不要安装或使用任何不信任的包。如果你安装它，那么你相信这段代码是你（除非你总是在一个监狱里运行它，但如果你要去那些长度，你可能更好自己编写代码）


2. 单独保留 sudo 和 / usr / local 在您的主目录。您将受到与使用 sudo 或更改 / usr / local 所有权相同的危险，但在至少你不会收获坏习惯。

1. Don't install or use any packages that you don't trust. If you install it then you're trusting that code to be you (unless you're always going to run it in a jail of some sort but if you're going to those lengths you're probably better off writing the code yourself).
2. Leave sudo and /usr/local alone and install it all inside your home directory. You'll be subject to most of the same dangers as using sudo or changing the /usr/local ownership but at least you won't be picking up bad habits.

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