nvm is not compatible with the npm config "prefix" option

[pnahtanoj]

• Operating system and version:
  DISTRIB_ID=Ubuntu
  DISTRIB_RELEASE=14.04

• nvm debug output:

jenkins@jenkins:~$ nvm debug
nvm --version: v0.33.4
$SHELL: /bin/bash
$HOME: /var/lib/jenkins
$NVM_DIR: '$HOME/.nvm'
$PREFIX: ''
$NPM_CONFIG_PREFIX: ''
$NVM_NODEJS_ORG_MIRROR: ''
$NVM_IOJS_ORG_MIRROR: ''
shell version: 'GNU bash, version 4.3.11(1)-release (x86_64-pc-linux-gnu)'
uname -a: 'Linux 3.13.0-48-generic #80-Ubuntu SMP Thu Mar 12 11:16:15 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux'
OS version: Ubuntu 14.04.2 LTS  
curl: /usr/bin/curl, curl 7.35.0 (x86_64-pc-linux-gnu) libcurl/7.35.0 OpenSSL/1.0.1f zlib/1.2.8 libidn/1.28 librtmp/2.3
wget: /usr/bin/wget, GNU Wget 1.15 built on linux-gnu.
git: /usr/bin/git, git version 1.9.1
nvm current: system
which node: /usr/bin/node
which iojs: 
which npm: /usr/bin/npm
npm config get prefix: /usr
npm root -g: /usr/lib/node_modules

• nvm ls output:

jenkins@jenkins:~$ nvm ls
         v7.8.0
         v8.2.1
->       system
default -> 7.8.0 (-> v7.8.0)
node -> stable (-> v8.2.1) (default)
stable -> 8.2 (-> v8.2.1) (default)
iojs -> N/A (default)
lts/* -> lts/boron (-> N/A)
lts/argon -> v4.8.4 (-> N/A)
lts/boron -> v6.11.3 (-> N/A)

• How did you install nvm? (e.g. install script in readme, homebrew):
  curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.33.4/install.sh | bash

• What steps did you perform?
  nvm install 8.2.1

• What happened?

Downloading and installing node v8.2.1...
Downloading https://nodejs.org/dist/v8.2.1/node-v8.2.1-linux-x64.tar.xz...
######################################################################## 100.0%
Computing checksum with sha256sum
Checksums matched!
nvm is not compatible with the npm config "prefix" option: currently set to "/mnt/data/jenkins/.nvm/versions/node/v8.2.1"
Run npm config delete prefix or nvm use --delete-prefix v8.2.1 to unset it.

• What did you expect to happen?

node 8.2.1. to become active

• Is there anything in any of your profile files (.bashrc, .bash_profile, .zshrc, etc) that modifies the PATH?
  First line of .bashrc: export PATH="$PATH:/usr/bin/:/bin"

[ljharb]

Do you have a ~/.npmrc file that has a "prefix" line in it?

I notice /mnt in your path; is $NVM_DIR a symlink?

[pnahtanoj]

It IS a symlink. Drat, I thought I'd checked that. I won't be able to verify the fix till later, but I'll come back and close the ticket once I do. Thanks for the quick response!

[ljharb]

In that case, this is basically a duplicate of #617

[pnahtanoj]

Finally verified, thank you