Error on created C++ based project

Sir, thank you so much.

Here’s the modern version for Unreal 4.27:

Then change on line 30
from: const int HashLength = 16;
to: const int HashLength = 32;

And line 116 from:

return MD5CryptoServiceProvider().ComputeHash(InvariantBytes);

to:

return SHA256CryptoServiceProvider().ComputeHash(InvariantBytes);