Runtime Error

[albertkhor]

When i run my system this error pop up (after few click on showing form, i use form.ShowDialog method), may i know what is this error stand for?

Below is detail or the 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 MobileOffice.frmContact.lvwContact_ItemCheck(Object sender, ItemCheckEventArgs e) in C:\Documents and Settings\Administrator\Desktop\Mobile Office Destop\MobileOfficeDesktop\frmContact.vb:line 3825
at System.Windows.Forms.ListView.OnItemCheck(ItemCheckEventArgs ice)
at System.Windows.Forms.ListView.WmReflectNotify(Message& m)
at System.Windows.Forms.ListView.WndProc(Message& m)
at System.Windows.Forms.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

************** Loaded Assemblies **************
mscorlib
Assembly Version: 1.0.5000.0
Win32 Version: 1.1.4322.573
CodeBase: file:///c:/windows/microsoft.net/framework/v1.1.4322/mscorlib.dll
----------------------------------------
MobileOffice
Assembly Version: 1.0.2246.22643
Win32 Version: 1.0.2246.22643
CodeBase: file:///C:/Documents%20and%20Settings/Administrator/Desktop/Mobile%20Office%20Destop/MobileOfficeDesktop/bin/MobileOffice.exe
----------------------------------------
System.Windows.Forms
Assembly Version: 1.0.5000.0
Win32 Version: 1.1.4322.573
CodeBase: file:///c:/windows/assembly/gac/system.windows.forms/1.0.5000.0__b77a5c561934e089/system.windows.forms.dll
----------------------------------------
System
Assembly Version: 1.0.5000.0
Win32 Version: 1.1.4322.573
CodeBase: file:///c:/windows/assembly/gac/system/1.0.5000.0__b77a5c561934e089/system.dll
----------------------------------------
Mocean.Desktop.Library
Assembly Version: 1.0.2246.22639
Win32 Version: 1.0.2246.22639
CodeBase: file:///C:/Documents%20and%20Settings/Administrator/Desktop/Mobile%20Office%20Destop/MobileOfficeDesktop/bin/Mocean.Desktop.Library.DLL
----------------------------------------
System.Drawing
Assembly Version: 1.0.5000.0
Win32 Version: 1.1.4322.573
CodeBase: file:///c:/windows/assembly/gac/system.drawing/1.0.5000.0__b03f5f7f11d50a3a/system.drawing.dll
----------------------------------------
System.Data
Assembly Version: 1.0.5000.0
Win32 Version: 1.1.4322.573
CodeBase: file:///c:/windows/assembly/gac/system.data/1.0.5000.0__b77a5c561934e089/system.data.dll
----------------------------------------
System.Xml
Assembly Version: 1.0.5000.0
Win32 Version: 1.1.4322.573
CodeBase: file:///c:/windows/assembly/gac/system.xml/1.0.5000.0__b77a5c561934e089/system.xml.dll
----------------------------------------
Mocean.Desktop.LibraryC
Assembly Version: 1.0.2246.24826
Win32 Version: 1.0.2246.24826
CodeBase: file:///C:/Documents%20and%20Settings/Administrator/Desktop/Mobile%20Office%20Destop/MobileOfficeDesktop/bin/Mocean.Desktop.LibraryC.DLL
----------------------------------------
Microsoft.VisualBasic
Assembly Version: 7.0.5000.0
Win32 Version: 7.10.3052.4
CodeBase: file:///c:/windows/assembly/gac/microsoft.visualbasic/7.0.5000.0__b03f5f7f11d50a3a/microsoft.visualbasic.dll
----------------------------------------
CrystalDecisions.Windows.Forms
Assembly Version: 9.1.5000.0
Win32 Version: 9.1.9800.0
CodeBase: file:///c:/windows/assembly/gac/crystaldecisions.windows.forms/9.1.5000.0__692fbea5521e1304/crystaldecisions.windows.forms.dll
----------------------------------------
CrystalDecisions.Shared
Assembly Version: 9.1.5000.0
Win32 Version: 9.1.9800.0
CodeBase: file:///c:/windows/assembly/gac/crystaldecisions.shared/9.1.5000.0__692fbea5521e1304/crystaldecisions.shared.dll
----------------------------------------
************** JIT Debugging **************
To enable just in time (JIT) debugging, the config file for this
application or machine (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 machine
rather than being handled by this dialog.

 

[JuggaloBrotha]

change the compile from Release to Debug then run the program and post the section of code that's causing that error

although just from looking at the picture of the error message, on the line that's causing the error you'll need to make an instance of that object by adding the keyword 'New' on the declaration line

 

[albertkhor]

change the compile from Release to Debug then run the program and post the section of code that's causing that error

although just from looking at the picture of the error message, on the line that's causing the error you'll need to make an instance of that object by adding the keyword 'New' on the declaration line

Hi JuggaloBrotha, thanks reply my post! i really need help~
please check on below link:
http://www.vbdotnetforums.com/showthread.php?t=8289