I'm not overly familiar with node.js, so I don't know how much I'll be able to help, but anyway:
'bash' is not recognized as an internal or external command, operable program or batch file.
bash is a Unix shell and your path indicates that you are on windows.
This means that normally, to run bash you'd need to install cygwin, then make sure cygwin’s bin path is added to your $PATH environment variable.
Could you check if this is the case on your machine?