Unknown error occured? When I install the Craft Commerce plugin on Craft CMS, I found an error "unknown error occurred".  Please tell me about this error and how to fix it. I will be very thankful.

I have a lot of google search on it but nothing useful.

Thanks again.
it is simple ! only edit php.ini file which is in your xampp folder . increase msql connection time and increase cache i.e limit size and that solve.