Relese with Microsoft Visual C++ asking for dlls?

[Pereubu2018]

On msvs C++ 2017 (with qt plugin) there is an option for creating release exes for the qt project. I build application, then go to where project exe file is located.
click exe file and it fails but ask me for core qtcore.dll, then gui … a then for network dll which I downloaded from somewhere
but it did not get started.... (https://www.dll-files.com/qt5core.dll.html).

What I have done wrong!
Am I missing something with the procedure of creating release exe files?

[Pereubu2018]

Sorry I have googled up the answer for my question:

https://wiki.qt.io/Build_Standalone_...on_for_Windows.