Release error!!!

[autom]

I'm sure this is gonna be easy for you folks but I need some help. I'm trying to create a Windows application for a project, but when I create my release version of the project and I copy the requested .dll by the application, I can't still open it because this error box emerges:

Some help please.

[koahnig]

@autom

Did you follow this https://doc.qt.io/qt-5/windows-deployment.html ?

There are also the plugins in subfolders required. That is often forgotten.