sudo apt-get install --reinstall nodejs-legacy # fix /usr/bin/nodesudo n rm 6.0.0 # replace number with version of Node that was installedsudo npm uninstall -g n
如果您收到以下错误bash: /usr/bin/node: No such file or directory,则您输入的路径为
(You may need to prefix these commands with sudo, especially on Linux, or OS X if you installed Node using its default installer.)
You can upgrade to the latest version of npm using:
npm install -g npm@latest
Or upgrade to the most recent release:
npm install -g npm@next
Upgrading on Windows
By default, npm is installed alongside node in
C:\Program Files (x86)\nodejs
npm's globally installed packages (including, potentially, npm itself) are stored separately in a user-specific directory (which is currently
C:\Users\<username>\AppData\Roaming\npm).
Because the installer puts
C:\Program Files (x86)\nodejs
before
C:\Users\<username>\AppData\Roaming\npm
on your PATH, it will always use the version of npm installed with node instead of the version of npm you installed using npm -g install npm@<version>.
To get around this, you can do one of the following:
Option 1: edit your Windows installation's PATH to put %appdata%\npm before %ProgramFiles%\nodejs.Remember that you'll need to restart cmd.exe (and potentially restart Windows) when you make changes to PATH or how npm is installed.
Option 2: remove both of
%ProgramFiles%\nodejs\npm
%ProgramFiles%\nodejs\npm.cmd
Option 3: Navigate to %ProgramFiles%\nodejs\node_modules\npm and copy the npmrcfile to another folder or the desktop.Then open cmd.exe and run the following commands:
cd %ProgramFiles%\nodejsnpm install npm@latest
If you installed npm with the node.js installer, after doing one of the previous steps, do the following.
Option 1 or 2
Go into %ProgramFiles%\nodejs\node_modules\npm and copy the file named npmrc in the new npm folder, which should be %appdata%\npm\node_modules\npm. This will tell the new npm where the global installed packages are.
Option 3
Copy the npmrc file back into %ProgramFiles%\nodejs\node_modules\npm
A brief note on the built-in Windows configuration
The Node installer installs, directly into the npm folder, a special piece of Windows-specific configuration that tells npm where to install global packages. When npm is used to install itself, it is supposed to copy this special builtin configuration into the new install. There was a bug in some versions of npm that kept this from working, so you may need to go in and fix that up by hand. Run the following command to see where npm will install global packages to verify it is correct.
npm config get prefix -g
If it isn't set to <X>:\Users\<user>\AppData\Roaming\npm, you can run the below command to correct it:
npm config set prefix "${APPDATA}/npm" -g
Incidentally, if you would prefer that packages not be installed to your roaming profile (because you have a quota on your shared network, or it makes logging in or out from a domain sluggish), you can put it in your local app data instead:
npm config set prefix "${LOCALAPPDATA}/npm" -g
...as well as copying %APPDATA%\npm to %LOCALAPPDATA%\npm (and updating your %PATH%, of course).
Everyone who works on npm knows that this process is complicated and fraught, and we're working on making it simpler. Stay tuned.
nvm list (shows you the list of installed nodejs version)nvm install nodeversion (to install the node version, if latest use @latest)nvm use 10.515.. (to use a perticular node version)