Newcomer in the GNU Radio World

Hello, I am a newbie in the GNU Radio. I use Windows 10 as an operating system and I have downloaded the GNU Radio Companion application, and I also have an RTL-SDR antenna and dongle that can be connected into a USB port. I tried to get my antenna to receive FM radio through the GNU Radio Companion app, but upon running the GRC file, I was not able to receive anything with my dongle. I didn’t have any errors when running. Could anyone give me some tips on how to solve this please? Thank you!