无法在ubuntu上安装npm

Question

尝试在ubuntu12.04上安装nodejs和npm。我在谷歌上搜索并做了。现在，我无法在机器上安装npm。

sudo apt-get install npm

这给了我这个

The following packages have unmet dependencies:
 npm : Depends: nodejs but it is not going to be installed
       Depends: nodejs-dev
       Depends: node-request but it is not going to be installed
       Depends: node-mkdirp but it is not going to be installed
       Depends: node-minimatch but it is not going to be installed
       Depends: node-semver but it is not going to be installed
       Depends: node-ini but it is not going to be installed
       Depends: node-graceful-fs but it is not going to be installed
       Depends: node-abbrev but it is not going to be installed
       Depends: node-nopt but it is not going to be installed
       Depends: node-fstream but it is not going to be installed
       Depends: node-rimraf but it is not going to be installed
       Depends: node-tar but it is not going to be installed
       Depends: node-which but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

Answer 1

我通过跟踪这份文件解决了这个问题。

记住与国家预防机制合作的指针：

mkdir ~/nodejs/ && cd ~/nodejs
sudo apt-get install npm
npm install
npm update

在开发应用程序时，如果nodejs需要任何特定模块，则运行

cd ~/nodejs
npm install modulename   #for example sendgrid

有时，模块需要全局安装，然后使用

sudo npm install modulename -g"

要删除模块：

cd ~/nodejs
npm uninstall modulename          # if locally installed or 
sudo npm uninstall modulename -g  # if globally installed

npm prune帮助移除未满足的依赖项。

Answer 2

看起来，您可能安装了克里斯node.js ppa，这很好。但是，您没有从ppa中安装npm，因为它破坏了debian包的工作方式。相反，只需安装nodejs即可。安装好之后，运行npm -v，您应该会看到它现在已经安装了。如果你没有使用chris更新你的问题，在你搜索的网页上找到如何在Ubuntu上安装nodejs。

Answer 3

尝试像这样安装NodeJs：

sudo apt-get install nodejs

自从NodeJs安装节点和npm以来