Thank You gamrziou.
my node version -
C:\Users\EunovateDev>node -v
v0.12.7
C:\Users\EunovateDev>npm -v
2.11.3
I also try ‘npm cache clean’. But it doesn’t work.
OK so you have latest versions, I thought you had very old versions due to your error message saying npm-1.3.4. Something is broken in your node environment (welcome to the joy of Node on Windows), how to fix it is hard to say as it could depend on many things. The only thing I can suggest is to try to uninstall it and then re-install, make sur you clean up all traces of past installation. You could even try another kind of installer like nodist or install an older version of node like 0.12.4.