Forms "Discover All Button" Causes Unhandled Exception

[jrodriguez142514]

When starting the forms application and clicking the Discover All Button, the application closes with an unhandled exception error. No devices are saved and application closes.

System.ArgumentNullException
HResult=0x80004003
Message=Value cannot be null.
Parameter name: source
Source=System.Core
StackTrace:
at System.Linq.Enumerable.Count[TSource](IEnumerable`1 source)
at Sony_Forms_Example.Form3.showDevice(SonyDevice cDev) in C:\Users*\Downloads\SonyAPILib-master\SonyAPILib-master\Sony_Forms_Example\Sony_Forms_Example\Form3.cs:line 49
at Sony_Forms_Example.Form3.Device_SelectedIndexChanged(Object sender, EventArgs e) in C:\Users*\Downloads\SonyAPILib-master\SonyAPILib-master\Sony_Forms_Example\Sony_Forms_Example\Form3.cs:line 97
at System.Windows.Forms.ComboBox.OnSelectedIndexChanged(EventArgs e)
at System.Windows.Forms.ComboBox.set_SelectedIndex(Int32 value)
at Sony_Forms_Example.Form3.Form3_Load(Object sender, EventArgs e) in C:\Users****\Downloads\SonyAPILib-master\SonyAPILib-master\Sony_Forms_Example\Sony_Forms_Example\Form3.cs:line 1061
at System.Windows.Forms.Form.OnLoad(EventArgs e)
at System.Windows.Forms.Form.OnCreateControl()
at System.Windows.Forms.Control.CreateControl(Boolean fIgnoreVisible)
at System.Windows.Forms.Control.CreateControl()
at System.Windows.Forms.Control.WmShowWindow(Message& m)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.Form.WmShowWindow(Message& m)
at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)