bot deployment error

Question

I'm experiencing the following error whenever I attempt to build my Azure web app bot online. When I run build.cmd, deploy.cmd immediately fails with the following error. I've not been able to find any information on the web on how to resolve this issue. it's very odd because it goes away the following day. I'm able to build once, and then it fails for all subsequent builds. Very odd.

 

\> build.cmd

An error has occurred during web site deployment.

'npm' is not recognized as an internal or external command,

operable program or batch file.

 

I have no idea how to resolve this problem. This seems to be an environmental issue with Azure.

 

thanks, Please provide solution if you have one please provide asap