source_location is not a member of std

Question

I'm getting this error "source_location is not a member of std" in this simple program and I have no idea why. I'm trying to work with source location but cannot get the header included properly. I'm using Visual studio 2019 version 16.10.3 and compiler support says its been suppoted since 19.29 (16.10)*

#include <source_location>

int main() {
    std::source_location test;
}