IDE Scrip DebugBuild Error

Hi there,
I’m running on r2019v2.1 and I’m trying to set the App.Bugversion in a IDE script, but the IDE Script Editor gives me an Error on this statement:

If DebugBuild Then

End If
Why is that?

Also if I run this Script from the Script Editor, it updates the Versions (the Run var is only to test as DebugBuild doesn’t work

Dim run As Boolean = True

If Run = True Then
Dim bugv As Integer = Val(PropertyValue(“App.NonReleaseVersion”))
PropertyValue(“App.NonReleaseVersion”) = Str(bugv + 1)
Else
Dim bugv As Integer = Val(PropertyValue(“App.BugVersion”))
PropertyValue(“App.BugVersion”) = Str(bugv + 1)
PropertyValue(“App.NonReleaseVersion”) = “1”
End If

// Set the ShortVersion to match the
// version numbers
Dim version As String
version = PropertyValue(“App.MajorVersion”) + “.” + _
PropertyValue(“App.MinorVersion”) + “.” + _
PropertyValue(“App.BugVersion”) + “.” + _
PropertyValue(“App.NonReleaseVersion”)

PropertyValue(“App.ShortVersion”) = version

DoCommand(“SaveFile”)

But it does not run if I use it as a ‘BuildScript’ (Both) ???