Suppose you have started learning Nodejs and trying to install some modules using npm for example npm install bunyan, you might get an error like Error: ENOENT, stat 'C:\Users\Me\AppData\Roaming\npm'.
So, to solve this error you need to manually create a folder named 'npm' inside 'C:\Users\Me\AppData\Roaming\'. After doing this your install would be successful. Just for an information AppData is a hidden folder. You need to check "Show hidden files,folders, and drives".
If the above solution doesn't work for you, try to run Node.js Command Prompt as an Administrator.
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