Object reference not set to an instance of an object

[GroovyGrovesy]

Hi,

After installing via Nuget when I try to view my Form (designer) in Visual Studio 2019 I get the following error message:

Any idea how to solve this as it keeps appearing even after restarting VS2019?

Thanks

[GroovyGrovesy]

I uninstalled the NuGet package and added it as a project to my solution and still get the error message but now it provides some more details as below:

which points to the 'Me.ParentForm.KeyPreview = True' line below:

Private Sub TabControl_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        Me.ParentForm.KeyPreview = True
        AddHandler Me.ParentForm.KeyDown, AddressOf Owner_KeyDown
End Sub