How this will work in visual studio 2017?

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Visual-Studio

errors

VisualC++

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I already made a function but just not printing and giving the error with compatability of the << operator and the void type of the function.

Error binary '<<': no operator found which takes a right-hand operand of type 'void' (or there is no acceptable conversion)

What I have tried:

std::cout << Utilities() << std::endl;