LibVLCSharp.windows.Videoview: Don't works in Client

[Tom773]

Hi all
On a Windows 10 professional Computer I use VisualStudio 2019 with VisualBasic for a project. There I use the Control VideoView.
I have loaded the nuget packages LibVLCSharp, LibVLCSharp.WinForms, Videolan.LibVLC.Windows
I would like to stream Video from an Axis Video Server (RTSP)
That works fine within VisualStudio (Debug and Release)

Then I created a Setup Project and installed the Application on the same computer.
When I try to open the form with the VideoView Control, there ist an error Message "Failed to perform instaciation on the native side. Make sure you installed the correct VideoLAN.LibVLC.[YourPlatform] package in your platform specific project." and there aren't any videos displayed.

I've already tried with X64 and X86 as plattform, changing of course the type of the libraries. Always same effect.
I've copied the vlc libraries from the bin/release directory to my application directory. Always same effect.

What do I wrong?
Thanky for help

[mfkl]

This means the libvlc library isn't found.

Then I created a Setup Project and installed the Application on the same computer.

What is a Setup Project?