node.js 找不到 npx 命令

npx command not found

提问by wokoro douye samuel

I am working with webpack and I need to execute ./node_modules/webpack/bin/webpack.jsusing npx. npx webpackwould run the webpack binary (./node_modules/webpack/bin/webpack), but each time I execute npx webpack I get bash: npx: command not found.

我正在使用 webpack，我需要./node_modules/webpack/bin/webpack.js使用npx. npx webpack将运行 webpack 二进制文件 ( ./node_modules/webpack/bin/webpack)，但每次执行 npx webpack 时我都会得到 bash: npx: command not found.

I am using:

我在用：

• node: v9.5.0

• npm: 5.6.0

• nvm: 1.1.5

• webpack: 3.11.0

• 节点：v9.5.0

• npm：5.6.0

• 虚拟机：1.1.5

• 网络包：3.11.0

回答by Bar Horing

npx should come with npm 5.2+, and you have node 5.6 .. I found that when I install node using nvm for Windows, it doesn't download npx. so just install npx globally:

npx 应该与 npm 5.2+ 一起提供，并且您有节点 5.6 .. 我发现当我使用 nvm for Windows 安装节点时，它不会下载 npx。所以只需全局安装 npx：

npm i -g npx

In Linuxor MacOS, if you found any permission related errors use sudo before it.

在Linux或MacOS 中，如果您发现任何与权限相关的错误，请在它之前使用 sudo。

sudo npm i -g npx

回答by Rajitha Fernando

if you are using Linux system, use sudocommand

如果您使用的是 Linux 系统，请使用sudo命令

sudo npm i -g npx

回答by Golam Sorwar

if you are using macOS, use sudocommand

如果您使用的是macOS，请使用sudo命令

sudo npm install -g npx

回答by Arafath

check versions of node, npm, npx as given below. if npx is not installed then use npm i -g npx

检查 node、npm、npx 的版本，如下所示。如果未安装 npx 则使用npm i -g npx

node -v
npm -v
npx -v

回答by Brian Sunbury

Updating node helped me, whether that be from the command line or just re-downloading it from the web

更新节点对我有帮助，无论是从命令行还是从网上重新下载

回答by aalaap

I returned to a system after a while, and even though it had Node 12.x, there was no npxor even npmavailable. I had installed Node via nvm, so I removed it, reinstalled it and then installed the latest Node LTS. This got me both npmand npx.

过了一会儿我又回到了一个系统，即使它有 Node 12.x，也没有npx甚至npm可用。我通过 安装了 Node nvm，所以我删除了它，重新安装了它，然后安装了最新的 Node LTS。这让我npm和npx.

回答by dipenparmar12

Remove NodeJs and npm in your system and reinstall it by following commands

删除系统中的 NodeJs 和 npm 并通过以下命令重新安装

Uninlstallation

卸载

sudo apt remove nodejs
sudo apt remove npm

sudo apt remove nodejs
sudo apt remove npm

Fresh Installation

全新安装

sudo apt install nodejs
sudo apt install npm

sudo apt install nodejs
sudo apt install npm

Configurationoptional, in some cases users may face permission errors.

配置可选，在某些情况下用户可能会面临权限错误。

1. user defined directory where npm will install packages

   mkdir ~/.npm-global

2. configure npm

   npm config set prefix '~/.npm-global'

3. add directory to path

   echo 'export PATH=~/.npm-global/bin:$PATH' >> ~/.profile

4. refresh path for the current session

   source ~/.profile

5. cross-check npm and node modules installed successfully in our system

   node -v
npm -v

1. 用户定义的 npm 将安装包的目录

   mkdir ~/.npm-global

2. 配置 npm

   npm config set prefix '~/.npm-global'

3. 将目录添加到路径

   echo 'export PATH=~/.npm-global/bin:$PATH' >> ~/.profile

4. 当前会话的刷新路径

   source ~/.profile

5. 交叉检查在我们的系统中成功安装的 npm 和节点模块

   node -v
npm -v

Installation of npx

安装 npx

sudo npm i -g npx
npx -v

sudo npm i -g npx
npx -v

Well-done we are ready to go... now you can easily use npxanywhere in your system.

干得好，我们准备好了……现在您可以轻松地npx在系统中的任何地方使用。