617
votes

Upon using a new terminal session in OS X, nvm forgets the node version and defaults to nothing:

$ nvm ls:

         .nvm
     v0.11.12
     v0.11.13

I have to keep hitting nvm use v.0.11.13 in every session:

         .nvm
     v0.11.12
->   v0.11.13

I've tried both the brew install, as well as the official installation script.

My .profile for the brew version:

#nvm
export NVM_DIR=~/.nvm
source $(brew --prefix nvm)/nvm.sh

And for the install.sh script:

$ curl https://raw.githubusercontent.com/creationix/nvm/v0.10.0/install.sh | bash

#nvm
export NVM_DIR="/Users/farhad/.nvm"
[ -s "$NVM_DIR/nvm.sh" ] && . "$NVM_DIR/nvm.sh"  # This loads nvm

Any clue to what I'm doing wrong?

20
Just want to add this here - Make sure you export from .bash_profile and not your .bashrcJames111
what's difference between .bash_profile vs .bashrc on Mac OS ?vikramvi

20 Answers

1306
votes

Try nvm alias default. For example:

$ nvm alias default 0.12.7

This sets the default node version in your shell. Then verify that the change persists by closing the shell window, opening a new one, then: node --version

92
votes

Alias to node itself to avoid updating the default alias along with node version updates later on.

nvm alias default node
44
votes

To install the latest stable version:

nvm install stable

To set default to the stable version (instead of a specific version):

nvm alias default stable

To list installed versions:

nvm list

As of v6.2.0, it will look something like:

$ nvm list
         v4.4.2
->       v6.2.0
default -> stable (-> v6.2.0)
node -> stable (-> v6.2.0) (default)
stable -> 6.2 (-> v6.2.0) (default)
iojs -> N/A (default)
44
votes

In my case, another program had added PATH changes to .bashrc

If the other program changed the PATH after nvm's initialisation, then nvm's PATH changes would be forgotten, and we would get the system node on our PATH (or no node).

The solution was to move the nvm setup to the bottom of .bashrc

### BAD .bashrc ###

# NVM initialisation
export NVM_DIR="$HOME/.nvm"
[ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"  # This loads nvm

# Some other program adding to the PATH:
export PATH="$ANT_ROOT:$PATH"

Solution:

### GOOD .bashrc ###

# Some other program adding to the PATH:
export PATH="$ANT_ROOT:$PATH"

# NVM initialisation
export NVM_DIR="$HOME/.nvm"
[ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"  # This loads nvm

(This was with bash 4.2.46 on CentOS. It seems to me like a bug in bash, but I may be mistaken.)

28
votes

nvm does its job by changing the PATH variable, so you need to make sure you aren't somehow changing your PATH to something else after sourcing the nvm.sh script.

In my case, nvm.sh was being called in .bashrc but then the PATH variable was getting updated in .bash_profile which caused my session to find the system node before the nvm node.

12
votes

The top rated solutions didn't seem to work for me. My solution is below:

  1. Uninstall nvm completely using homebrew:brew uninstall nvm
  2. Reinstall brew install nvm
  3. In Terminal, follow the steps below(these are also listed when installing nvm via homebrew):

    mkdir ~/.nvm cp $(brew --prefix nvm)/nvm-exec ~/.nvm/ export NVM_DIR=~/.nvm source $(brew --prefix nvm)/nvm.sh

The steps outlined above will add NVM's working directory to your $HOME path, copy nvm-exec to NVM's working directory and add to $HOME/.bashrc, $HOME/.zshrc, or your shell's equivalent configuration file.(again taken from whats listed on an NVM install using homebrew)

9
votes

If you have tried everything still no luck you can try this :_

1 -> Uninstall NVM

rm -rf ~/.nvm

2 -> Remove npm dependencies by following this

3 -> Install NVM

curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.33.11/install.sh | bash

4 -> Set ~/.bash_profile configuration

Run sudo nano ~/.bash_profile

Copy and paste following this

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

5 -> CONTROL + X save the changes

6 -> Run . ~/.bash_profile

7 -> Now you should have nvm installed on your machine, to install node run nvm install v7.8.0 this will be default node version or you can install any version of node

6
votes

This question has mentioned for the OSX, but it happened to me in my linux OS. I tried using nvm alias default <version> but for each new terminal session the used node version was forgotten. so, here is the solution that i figured out.

make sure to set a default alias for node version,put the following code in .bashrc, and source .bashrc.

export NVM_DIR="/home/bonnie/.nvm"
## If the file exists and is not empty
if [ -s "$NVM_DIR/nvm.sh" ]; then
    ## Source it
    source "$NVM_DIR/nvm.sh"
fi
NODE_DEFAULT_VERSION=$(<"$NVM_DIR/alias/default")
export PATH="$NVM_DIR/versions/node/$NODE_DEFAULT_VERSION/bin":$PATH

descriptive solution link

5
votes

I'm using ZSH so I had to modify ~/.zshrc with the lines concerning NVM in that order:

[ -s "$NVM_DIR/nvm.sh" ] && . "$NVM_DIR/nvm.sh" # This loads nvm
source ~/.nvm/nvm.sh
4
votes

Doing nvm install 10.14, for example, will nvm use that version for the current shell session but it will not always set it as the default for future sessions as you would expect. The node version you get in a new shell session is determined by nvm alias default. Confusingly, nvm install will only set the default alias if it is not already set. To get the expected behaviour, do this:

nvm alias default ''; nvm install 10.14

This will ensure that that version is downloaded, use it for the current session and set it as the default for future sessions.

4
votes

Here is a simple instruction:

1) Install:

nvm install 8.10.0

2) Use once per terminal

nvm use 8.10.0

3) Set up as default for all terminals

nvm alias default 8.10.0

You may need to use root permissions to perform those actions.

And don't forget to check nvm documentation for more info.

Also note that you may need to specify node version for your IDE: enter image description here

3
votes

run this after you installed any version,

n=$(which node);n=${n%/bin/node}; chmod -R 755 $n/bin/*; sudo cp -r $n/{bin,lib,share} /usr/local

This command is copying whatever version of node you have active via nvm into the /usr/local/ directory and setting the permissions so that all users can access them.

3
votes

I have found a new way here. Using n Interactively Manage Your Node.js helps.

2
votes

I was facing the same issue while using the integrated terminal in VS Code editor. Restarting VS Code after changing the node version using nvm fixed the issue for me.

1
votes

If you also have SDKMAN...

Somehow SDKMAN was conflicting with my NVM. If you're at your wits end with this and still can't figure it out, I just fixed it by ignoring the "THIS MUST BE AT THE END OF THE FILE..." from SDKMAN and putting the NVM lines after it.

#THIS MUST BE AT THE END OF THE FILE FOR SDKMAN TO WORK!!!
export SDKMAN_DIR="/Users/myname/.sdkman"
[[ -s "/Users/myname/.sdkman/bin/sdkman-init.sh" ]] && source "/Users/myname/.sdkman/bin/sdkman-init.sh"

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
1
votes
$ nvm alias default {NODE_VERSION}

when we use the above command, only update the node version but the npm still uses the old version.

Here is another solution for update the both node and npm, in my case i want to use node 8.9.4 and i have used the below command.

$ nvm use default 8.9.4

And the command returns the output.

Now using node v8.9.4 (npm v5.6.0)

0
votes

On Ubuntu there is a potential issue if you are running a non-interactive shell, for example from a cronjob, or an init or upstart script.

Ubuntu's default .bashrc has this guard at the top which drops out early if the shell is non-interactive:

# If not running interactively, don't do anything
[ -z "$PS1" ] && return

So in order to get NVM loaded for non-interactive scripts, you can edit ~/.bashrc and move NVM's init to the top of the file, just above the guard.

Even safer is to copy the NVM init so it appears twice. That will address the concern mentioned in other answers, when other lines are modifying the PATH after NVM. NVM doesn't seem to mind being run twice, although it does slow down the shell startup a little.

0
votes

In the nvm autoload script from the github I had to chage

local node_version="$(nvm version)" to local node_version="$(node -v)"

There was a local install of nvm on my system in my path so nvm version kept saying system no matter what

0
votes
export NVM_DIR="$HOME/.nvm"
  [ -s "/usr/local/opt/nvm/nvm.sh" ] && . "/usr/local/opt/nvm/nvm.sh"  # This loads nvm
  [ -s "/usr/local/opt/nvm/etc/bash_completion.d/nvm" ] && . "/usr/local/opt/nvm/etc/bash_completion.d/nvm"  # This loads nvm bash_completion

# place this after nvm initialization!
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
-2
votes

Also in case you had node installed before nvm check in your ~/.bash_profile to not have something like :

export PATH=/bin:/sbin:/usr/bin:/usr/local/sbin:/usr/local/bin:$PATH

If you do have it, comment/remove it and nvm should start handling the default node version.