nvm: nvm prefix error appears in VS Code terminal only when default alias is present

• Operating system and version: MacOS High Sierra 10.13

• nvm debug output:

nvm --version: v0.33.6
$TERM_PROGRAM: Apple_Terminal
$SHELL: /bin/bash
$HOME: /Users/stonehippo
$NVM_DIR: '$HOME/.nvm'
$PREFIX: ''
$NPM_CONFIG_PREFIX: ''
$NVM_NODEJS_ORG_MIRROR: ''
$NVM_IOJS_ORG_MIRROR: ''
shell version: 'GNU bash, version 3.2.57(1)-release (x86_64-apple-darwin17)'
uname -a: 'Darwin 17.0.0 Darwin Kernel Version 17.0.0: Thu Aug 24 21:48:19 PDT 2017; root:xnu-4570.1.46~2/RELEASE_X86_64 x86_64'
OS version: Mac 10.13 17A405
curl: /usr/bin/curl, curl 7.54.0 (x86_64-apple-darwin17.0) libcurl/7.54.0 LibreSSL/2.0.20 zlib/1.2.11 nghttp2/1.24.0
wget: /usr/local/bin/wget, GNU Wget 1.19.2 built on darwin17.0.0.
git: /usr/local/bin/git, git version 2.14.3
grep: /usr/local/bin/grep, grep (GNU grep) 3.1
awk: /usr/local/bin/awk, GNU Awk 4.2.0, API: 2.0 (GNU MPFR 3.1.6, GNU MP 6.1.2)
sed: /usr/local/bin/sed, sed (GNU sed) 4.4
cut: illegal option -- -
usage: cut -b list [-n] [file ...]
       cut -c list [file ...]
       cut -f list [-s] [-d delim] [file ...]
cut: /usr/bin/cut, 
basename: illegal option -- -
usage: basename string [suffix]
       basename [-a] [-s suffix] string [...]
basename: /usr/bin/basename, 
sed: -e expression #1, char 9: Unmatched ) or \)
rm: illegal option -- -
usage: rm [-f | -i] [-dPRrvW] file ...
       unlink file
rm: , 
sed: -e expression #1, char 9: Unmatched ) or \)
mkdir: illegal option -- -
usage: mkdir [-pv] [-m mode] directory ...
mkdir: , 
xargs: illegal option -- -
usage: xargs [-0opt] [-E eofstr] [-I replstr [-R replacements]] [-J replstr]
             [-L number] [-n number [-x]] [-P maxprocs] [-s size]
             [utility [argument ...]]
xargs: /usr/bin/xargs, 
nvm current: v8.8.1
which node: $NVM_DIR/versions/node/v8.8.1/bin/node
which iojs: 
which npm: $NVM_DIR/versions/node/v8.8.1/bin/npm
npm config get prefix: $NVM_DIR/versions/node/v8.8.1
npm root -g: $NVM_DIR/versions/node/v8.8.1/lib/node_modules

• nvm ls output:

        v6.11.5
->       v8.8.1
default -> 8.8.1 (-> v8.8.1)
node -> stable (-> v8.8.1) (default)
stable -> 8.8 (-> v8.8.1) (default)
iojs -> N/A (default)
lts/* -> lts/boron (-> v6.11.5)
lts/argon -> v4.8.5 (-> N/A)
lts/boron -> v6.11.5

• How did you install nvm? (e.g. install script in readme, homebrew): Install script

• What steps did you perform?

Installed nvm via the standard script in MacOS terminal, installed node 8.8.1 (default alias was created) and lts/boron, then opened VSCode (with and without extensions), started terminal.

• What happened?

The VS Code terminal displayed the following error at startup:

nvm is not compatible with the npm config "prefix" option: currently set to "/usr/local"
Run `npm config delete prefix` or `nvm use --delete-prefix v8.8.1 --silent` to unset it.

This error does not appear in MacOS terminal, only the VS Code terminal. Removing the default alias in .nvm/alias removes the error message at startup (and node continues to function correctly).

The node environment does not appear to get set up correctly as shown in this run of nvm debug from the VS Code terminal when the issue appears:

nvm --version: v0.33.6
$TERM_PROGRAM: vscode
$SHELL: /bin/bash
$HOME: /Users/stonehippo
$NVM_DIR: '$HOME/.nvm'
$PREFIX: ''
$NPM_CONFIG_PREFIX: ''
$NVM_NODEJS_ORG_MIRROR: ''
$NVM_IOJS_ORG_MIRROR: ''
shell version: 'GNU bash, version 3.2.57(1)-release (x86_64-apple-darwin17)'
uname -a: 'Darwin 17.0.0 Darwin Kernel Version 17.0.0: Thu Aug 24 21:48:19 PDT 2017; root:xnu-4570.1.46~2/RELEASE_X86_64 x86_64'
OS version: Mac 10.13 17A405
curl: /usr/bin/curl, curl 7.54.0 (x86_64-apple-darwin17.0) libcurl/7.54.0 LibreSSL/2.0.20 zlib/1.2.11 nghttp2/1.24.0
wget: /usr/local/bin/wget, GNU Wget 1.19.2 built on darwin17.0.0.
git: /usr/local/bin/git, git version 2.14.3
grep: /usr/local/bin/grep, grep (GNU grep) 3.1
awk: /usr/local/bin/awk, GNU Awk 4.2.0, API: 2.0 (GNU MPFR 3.1.6, GNU MP 6.1.2)
sed: /usr/local/bin/sed, sed (GNU sed) 4.4
cut: illegal option -- -
usage: cut -b list [-n] [file ...]
       cut -c list [file ...]
       cut -f list [-s] [-d delim] [file ...]
cut: /usr/bin/cut,
basename: illegal option -- -
usage: basename string [suffix]
       basename [-a] [-s suffix] string [...]
basename: /usr/bin/basename,
rm: illegal option -- -
usage: rm [-f | -i] [-dPRrvW] file ...
       unlink file
rm: /bin/rm,
mkdir: illegal option -- -
usage: mkdir [-pv] [-m mode] directory ...
mkdir: /bin/mkdir,
xargs: illegal option -- -
usage: xargs [-0opt] [-E eofstr] [-I replstr [-R replacements]] [-J replstr]
             [-L number] [-n number [-x]] [-P maxprocs] [-s size]
             [utility [argument ...]]
xargs: /usr/bin/xargs,
nvm current: none
which node:
which iojs:
which npm: /usr/local/bin/npm
npm config get prefix: env: node: No such file or directory
npm root -g: env: node: No such file or directory

Restoring the default alias triggers the error message. In addition, it is possible to invoke nvm use default and get the environment to work. The issue occurs on at startup.

• What did you expect to happen?

The error should not occur when the default alias is present, and nvm should load the version assigned to the default alias.

• Is there anything in any of your profile files (.bashrc, .bash_profile, .zshrc, etc) that modifies the PATH?

No