B4J Question Problem with MYSQL connection

#Region Project Attributes
    #MainFormWidth: 600
    #MainFormHeight: 600
    
  #AdditionalJar: mysql-connector-java-5.1.47-bin.jar
  
#End Region

Sub Process_Globals
    Private fx As JFX
    Private MainForm As Form
    
    Private Button1 As B4XView
    Private oldbase As SQL
    
End Sub

Sub AppStart (Form1 As Form, Args() As String)
    oldbase.Initialize2("com.mysql.jdbc.MysqlDataSource", "jdbc:mysql://192.168.178.26:3306/HD2000_production?characterEncoding=utf8", "thorsten", "rachel123")
    
    MainForm = Form1
    MainForm.RootPane.LoadLayout("Layout1")
    MainForm.Show
End Sub

Sub Button1_Click
    
End Sub

Waiting for debugger to connect...
Program started.
Fehler in Zeile: 19 (Main)
java.lang.RuntimeException: Class not found: com.mysql.jdbc.MysqlDataSource
Are you missing an #AdditionalJar attribute setting?
at anywheresoftware.b4j.objects.SQL.Initialize2(SQL.java:56)
at b4j.example.main._appstart(main.java:74)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at anywheresoftware.b4a.shell.Shell.runMethod(Shell.java:632)
at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:237)
at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:167)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:91)
at anywheresoftware.b4a.shell.ShellBA.raiseEvent2(ShellBA.java:98)
at anywheresoftware.b4a.BA.raiseEvent(BA.java:78)
at b4j.example.main.start(main.java:38)
at com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$8(LauncherImpl.java:863)
at com.sun.javafx.application.PlatformImpl.lambda$runAndWait$7(PlatformImpl.java:326)
at com.sun.javafx.application.PlatformImpl.lambda$null$5(PlatformImpl.java:295)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.javafx.application.PlatformImpl.lambda$runLater$6(PlatformImpl.java:294)
at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)
at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at com.sun.glass.ui.win.WinApplication.lambda$null$3(WinApplication.java:177)
at java.lang.Thread.run(Thread.java:748)

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