Hai Shubham, thanks for your suggestion. But I think the problem isn’t solved yet
The 2nd option didn’t worked for me (sudo command already installed from npm install -s sudo). The sudo command just shown me:
‘sudo’ is not recognized as an internal or external command,
operable program or batch file.
For the 1st and 3rd option, ‘npm install -g appium’ still gave me same error just like before
Is it any relation to the proxy? Because the one part of the error message just tell something about proxy.