node-inspector: install fails in OSX 10.10.2 / Node 0.12.4

$ sw_vers -productVersion
10.10.2
$ node --version
v0.12.4
$ which node
/Users/collumj/.nvm/versions/node/v0.12.4/bin/node

The error lines from the output are:

11491 error Darwin 14.1.0
11492 error argv "/Users/collumj/.nvm/versions/node/v0.12.4/bin/node" "/Users/collumj/.nvm/versions/node/v0.12.4/bin/npm" "--no-bin-links" "install" "-g" "node-inspector"
11493 error node v0.12.4
11494 error npm  v2.10.1
11495 error file sh
11496 error code ELIFECYCLE
11497 error errno ENOENT
11498 error syscall spawn
11499 error v8-debug@0.4.6 install: `node-pre-gyp install --fallback-to-build`
11499 error spawn ENOENT
11500 error Failed at the v8-debug@0.4.6 install script 'node-pre-gyp install --fallback-to-build'.
11500 error This is most likely a problem with the v8-debug package,
11500 error not with npm itself.
11500 error Tell the author that this fails on your system:
11500 error     node-pre-gyp install --fallback-to-build

I don’t appear to have node-pre-gyp installed but shouldn’t it be installing that as a dependency? Maybe nvm is the culprit?

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