Error while setting up cygwin

[Harsh Giri]

Hello @dev Team,

I was following the wiki on how to setup environment and i have faced 
multiple errors such as listed below.

1. There were some issues downloading the packages on cygwin

2. the commands mention in wiki are not executing properly (please refer 
to the attachment)

Is there a way i can rectify if I have installed cygwin correctly on my 
system?

Regards,

Harsh