EBUSY on unlink from "npm install -g oauthd" - npm

Question

So, I have an open issue at the oauthd repo: Issue but the activity in their issue list looks very sporadic.
I'm trying to execute "npm install -g oauthd" from a MINGW32 shell.
I'm being told by the console that I am doing that wrong.
abates#MACHINE /c/dev/tools
$ npm -v
1.4.28
abates#MACHINE /c/dev/tools
$ npm install -g oauthd
npm ERR! Error: EBUSY, unlink 'C:\Users\abates\AppData\Roaming\npm\node_modules\
oauthd\node_modules\hiredis'
npm ERR! If you need help, you may report this *entire* log,
npm ERR! including the npm and node versions, at:
npm ERR! <http://github.com/npm/npm/issues>
npm ERR! System Windows_NT 6.1.7601
npm ERR! command "c:\\Program Files\\nodejs\\node.exe" "c:\\Program Files\\nodej
s\\node_modules\\npm\\bin\\npm-cli.js" "install" "-g" "oauthd"
npm ERR! cwd c:\dev\tools
npm ERR! node -v v0.10.32
npm ERR! npm -v 1.4.28
npm ERR! path C:\Users\abates\AppData\Roaming\npm\node_modules\oauthd\node_modul
es\hiredis
npm ERR! code EBUSY
npm ERR! errno 10
abates#MACHINE /c/dev/tools
$
I couldn't find any useful information about the "EBUSY, unlink..." error that seems to have triggered the crash.

Answer 1

To resolve the "EBUSY, unlink..." error, I upgraded node package manager to 2.1.6.
The race condition was eliminated
Check your PATH.
Make sure that
C:\<install location of node>
loads before
\user\<user>\AppData\npm
$ cd C:\<install location of node>
$npm install npm#2.1.6
$npm -v
2.1.6
$npm install oauthd -g
\
Edit
Note that for my particular installation task (oauthd), there are dependencies on hiredis and dtrace-provider that are failing to build on my machine.
My hunch is that it is ignoring the availability of MSBuild.exe in the PATH and trying to load my MSBuild location directly from the registry but the error descriptions do not lead one to a natural next step other than trial and error.
With that:
Docker to the rescue.
docker#boot2docker:~$ docker run -d --name redis - p 6379:6379 dockerfile/redis
docker#boot2docker:~$ docker run -d --name oauthd -p 443:443 -p 6284:6284 -e oauthd_host_url=http://auth.domain:6284 --link redis:redis vinc/oauthd-instance
works like a champ.
If you aren't using docker, you're doing it wrong.