Return a std::function

I am trying to return a std::function<int()> myFunction like so:

std::function < int() > getFunction ()
{
    return storedFunction;
}

but I am receiving the compiling error:

C2338: "Type has to implement operator<< to be printable".

Is there a way to return a std::function, or is there another way I should be going about returning a std::function?