本地安装时的无关包 [英] Extraneous Package when Installed Locally

问题描述

我试图安装 phantomjs 以便 make test 推特引导程序.我在本地安装它后，即 npm install phantomjs，它报告说这个包是无关紧要的.

I was trying to install phantomjs in order to make test Twitter Bootstrap. After I had installed it locally i.e. npm install phantomjs, it reported that the package was extraneous.

├─┬ phantomjs@1.9.0-3 extraneous
│ ├── adm-zip@0.2.1
...
npm ERR! extraneous: phantomjs@1.9.0-3 /Users/admin/bootstrap/node_modules/phantomjs
npm ERR! not ok code 0

但是，当 phantomjs 全局安装时，即 npm install phantomjs -g，它工作正常，即没有报告无关的错误.

However, when phantomjs was installed globally i.e. npm install phantomjs -g, it worked fine i.e. no extraneous error reported.

问题:

1. 是不是因为 phantomjs 未在 package.json 文件中指定?
2. 一般问题:我们可以提供任何包裹，例如phantomjs 全局安装还是本地安装?

1. Is it because phantomjs not specified in the package.json file?
2. General question: Can we have any package e.g. phantomjs installed globally and also locally?

推荐答案

1. 是的.(使用npm install 重新安装不会再次安装phantom.js.)(顺便说一句:npm install xxx --save 会自动将xxx 添加到package.json)
2. 是的.本地包版本优于全局包版本.(尽管您需要对可执行文件进行一些路径处理.)

1. Yes. (Re-installing with npm install wont install phantom.js again.) (Btw.: npm install xxx --save will automatically add xxx to the package.json)
2. Yes. Local package versions are preferred over global ones. (Although you need some path handling for executables.)

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