While using the visual studio plugin to create a grid widget it does not produce the file anywhere in the application. When the cmd prompt window shows it does flash some red text but am unable to read it
Please try the same in command line interface (CLI) and if you believe to be error in the product please let us know.
Note that the forums are for community self help, hence have unpredictable and unguaranteed response times.
We do not provide or obliged to provide support from Sitefinity teams here, support portal is for that. We just occasionally monitoring this, as you see now. Next time you may not get that lucky.
You have better channels to get help on issues like this, being part of Progress team, :) please contact me or my team directly.
All the best,