GBCHawk RAM Watch save error

See the end of this message for details on invoking
just-in-time (JIT) debugging instead of this dialog box.

************** Exception Text **************
System.NullReferenceException: Object reference not set to an instance of an object.
   at BizHawk.Client.Common.WatchList.Save()
   at BizHawk.Client.EmuHawk.RamWatch.saveToolStripMenuItem_Click(Object sender, EventArgs e)
   at System.Windows.Forms.ToolStripItem.RaiseEvent(Object key, EventArgs e)
   at System.Windows.Forms.ToolStripButton.OnClick(EventArgs e)
   at System.Windows.Forms.ToolStripItem.HandleClick(EventArgs e)
   at System.Windows.Forms.ToolStripItem.HandleMouseUp(MouseEventArgs e)
   at System.Windows.Forms.ToolStripItem.FireEventInteractive(EventArgs e, ToolStripItemEventType met)
   at System.Windows.Forms.ToolStripItem.FireEvent(EventArgs e, ToolStripItemEventType met)
   at System.Windows.Forms.ToolStrip.OnMouseUp(MouseEventArgs mea)
   at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
   at System.Windows.Forms.Control.WndProc(Message& m)
   at System.Windows.Forms.ScrollableControl.WndProc(Message& m)
   at System.Windows.Forms.ToolStrip.WndProc(Message& m)
   at ToolStripEx.WndProc(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)


************** Loaded Assemblies **************
mscorlib
    Assembly Version: 4.0.0.0
    Win32 Version: 4.0.30319.1008 (RTMGDR.030319-1000)
    CodeBase: file:///C:/Windows/Microsoft.NET/Framework/v4.0.30319/mscorlib.dll
----------------------------------------
EmuHawk
    Assembly Version: 1.5.3.5457
    Win32 Version: 1.5.3.5457
    CodeBase: file:///C:/BizHawk-1.5.3/EmuHawk.exe
----------------------------------------
System
    Assembly Version: 4.0.0.0
    Win32 Version: 4.0.30319.1001 built by: RTMGDR
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System/v4.0_4.0.0.0__b77a5c561934e089/System.dll
----------------------------------------
System.Windows.Forms
    Assembly Version: 4.0.0.0
    Win32 Version: 4.0.30319.1002 built by: RTMGDR
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Windows.Forms/v4.0_4.0.0.0__b77a5c561934e089/System.Windows.Forms.dll
----------------------------------------
System.Drawing
    Assembly Version: 4.0.0.0
    Win32 Version: 4.0.30319.1001 built by: RTMGDR
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Drawing/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll
----------------------------------------
BizHawk.Client.Common
    Assembly Version: 1.5.3.5457
    Win32 Version: 1.5.3.5457
    CodeBase: file:///C:/BizHawk-1.5.3/dll/BizHawk.Client.Common.dll
----------------------------------------
BizHawk.Emulation.Cores
    Assembly Version: 1.5.3.5457
    Win32 Version: 1.5.3.5457
    CodeBase: file:///C:/BizHawk-1.5.3/dll/BizHawk.Emulation.Cores.dll
----------------------------------------
BizHawk.Emulation.Common
    Assembly Version: 1.5.3.5457
    Win32 Version: 1.5.3.5457
    CodeBase: file:///C:/BizHawk-1.5.3/dll/BizHawk.Emulation.Common.dll
----------------------------------------
BizHawk.Emulation.DiscSystem
    Assembly Version: 1.5.3.5457
    Win32 Version: 1.5.3.5457
    CodeBase: file:///C:/BizHawk-1.5.3/dll/BizHawk.Emulation.DiscSystem.dll
----------------------------------------
BizHawk.Common
    Assembly Version: 1.5.3.5457
    Win32 Version: 1.5.3.5457
    CodeBase: file:///C:/BizHawk-1.5.3/dll/BizHawk.Common.dll
----------------------------------------
System.Core
    Assembly Version: 4.0.0.0
    Win32 Version: 4.0.30319.233 built by: RTMGDR
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Core/v4.0_4.0.0.0__b77a5c561934e089/System.Core.dll
----------------------------------------
SlimDX
    Assembly Version: 4.0.10.43
    Win32 Version:
    CodeBase: file:///C:/BizHawk-1.5.3/dll/SlimDX.dll
----------------------------------------
Microsoft.VisualBasic
    Assembly Version: 10.0.0.0
    Win32 Version: 10.0.30319.1 built by: RTMRel
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/Microsoft.VisualBasic/v4.0_10.0.0.0__b03f5f7f11d50a3a/Microsoft.VisualBasic.dll
----------------------------------------
Newtonsoft.Json
    Assembly Version: 1.3.0.0
    Win32 Version: 1.3.0.0
    CodeBase: file:///C:/BizHawk-1.5.3/dll/Newtonsoft.Json.dll
----------------------------------------

************** JIT Debugging **************
To enable just-in-time (JIT) debugging, the .config file for this
application or computer (machine.config) must have the
jitDebugging value set in the system.windows.forms section.
The application must also be compiled with debugging
enabled.

For example:

<configuration>
    <system.windows.forms jitDebugging="true" />
</configuration>

When JIT debugging is enabled, any unhandled exception
will be sent to the JIT debugger registered on the computer
rather than be handled by this dialog box.