How do i resolve these errors in c++? [on hold]

I wrote my first program using C++11 thread feature, that is build in "eclipse juno"

#include <iostream>
#include <thread>

void thFunc() {
    std::cout << "Hi from thread\n";
}

int main() {
    std::thread th(&thFunc);
    std::cout << "Hi from main!\n";
    th.join();
    return 0;

}

I find below errors in mingw distribution code:

Edit:

After switching to release mode, above error is resolved.

Now, I get the below error: