How to change node version with nvm

I'm using yeoman to create a project, when I try to use gulp I run the cmd : gulp serve an error tells me that I need an older version of node (8.9.4), knowing that I've installed the latest version (10.14.1).

So i installed nvm to change the node version, I had to set it into path C:\, then I run with success : nvm install 8.9.4 and when I try to use it : nvm use 8.9.4, its always the latest version that is used

if i try to use 8.10.0, then run node -v it tells me access refused, same to any node command

5 Answers

you need to use

nvm use 8.10.0 

note that you need to run this command as administrator

1) Install (root permissions might be required)

nvm install 8.10.0 

2) Use once per terminal (root permissions might be required)

nvm use 8.10.0 

3) Set up as default for all terminals (root permissions might be required)

nvm alias default 8.10.0 

4) Additional info

• check nvm documentation for more info

• Also you may need to specify node version for your IDE:

Switch to specific Node.js version

nvm use 8.10.0 

Switch to the latest Node.js version:

nvm use node 

Switch to the latest LTS version:

nvm use --lts 

you can check which versions you have installed by running:

nvm ls 

The entry in green, with an arrow on the left, is the current version in use

Specify a Node Version on a Per-project Basis

Version managers such as rbenv allow you to specify a Ruby version on a per-project basis (by writing that version to a .ruby-version file in your current directory). This is kind of possible with nvm in that, if you create a .nvmrc file inside a project and specify a version number, you can cd into the project directory and type nvm use. nvm will then read the contents of the .nvmrc file and use whatever version of Node you specify.

If it’s important to you that this happens automatically, there are a couple of snippets on the project’s home page for you to add to your .bashrc or .zshrc files to make this happen.

Here’s the ZSH snippet. Place this below your nvm config:

 autoload -U add-zsh-hook load-nvmrc() { local node_version="$(nvm version)" local nvmrc_path="$(nvm_find_nvmrc)" if [ -n "$nvmrc_path" ]; then local nvmrc_node_version=$(nvm version "$(cat "${nvmrc_path}")") if [ "$nvmrc_node_version" = "N/A" ]; then nvm install elif [ "$nvmrc_node_version" != "$node_version" ]; then nvm use fi elif [ "$node_version" != "$(nvm version default)" ]; then echo "Reverting to nvm default version" nvm use default fi } add-zsh-hook chpwd load-nvmrc load-nvmrc 

when you change into a directory with a .nvmrc file, your shell will automatically change Node version.

Make sure you run your terminal as an admin

nvm use <version> // this should work fine 

without the privilege, I was getting this error

nvm use 16.14.0 exit status 5: Access is denied.

You need to edit your .bachrc file.

add the below to the that file. Change the version to your preferred version. This example uses v16.13.1. It is possible this you have something like this already in that file which causes the change back to your previous versions.

export NVM_DIR="$HOME/.nvm" [ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh" # This loads nvm [ -s "$NVM_DIR/bash_completion" ] && \. "$NVM_DIR/bash_completion" # This loads nvm bash_completion export PATH="/home/zentech/.local/bin:/home/zentech/.nvm/versions/node/v14.18.2/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin"