Onmessage() error - Forum

[gja]

2009-08-07, 09:08 #1

Member since Jul 2009 · 19 posts
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Subject: Onmessage() error

anybody know this type of error?

i cnt receive a message from another computer..i think this is not in the code because we both ran same codes..

here's the error:
--------------------- 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 MLsystem.frmMainMenu.XmppCon_OnMessage(Object sender, Message msg) in C:\Documents and Settings\Johanna\Desktop\MLSystem6.1FirstAlpha Updated\frmMainMenu.vb:line 2352

************** 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

MLsystem
    Assembly Version: 4.1.0.0
    Win32 Version: 4.1.0.0
    CodeBase: file:///C:/EG2003/MLSYSTEM/MLsystem.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

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

AxInterop.MSMask
    Assembly Version: 1.1.0.0
    Win32 Version: 1.1.0.0
    CodeBase: file:///C:/EG2003/MLSYSTEM/AxInterop.MSMask.DLL

Interop.MSMask
    Assembly Version: 1.1.0.0
    Win32 Version: 1.1.0.0
    CodeBase: file:///C:/EG2003/MLSYSTEM/Interop.MSMask.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

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

AxInterop.MSFlexGridLib
    Assembly Version: 1.0.0.0
    Win32 Version: 1.0.0.0
    CodeBase: file:///C:/EG2003/MLSYSTEM/AxInterop.MSFlexGridLib.DLL

Interop.MSFlexGridLib
    Assembly Version: 1.0.0.0
    Win32 Version: 1.0.0.0
    CodeBase: file:///C:/EG2003/MLSYSTEM/Interop.MSFlexGridLib.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

System.EnterpriseServices
    Assembly Version: 1.0.5000.0
    Win32 Version: 1.1.4322.573
    CodeBase: file:///c:/windows/assembly/gac/system.enterpriseservices/1.0.5000.0__b03f5f7f11d50a3a/system.enterpriseservices.dll

MySql.Data
    Assembly Version: 1.0.10.1
    Win32 Version: 1.0.10.1
    CodeBase: file:///C:/EG2003/MLSYSTEM/MySql.Data.DLL

agsXMPP
    Assembly Version: 1.1.0.0
    Win32 Version: 1.1.0.0
    CodeBase: file:///C:/EG2003/MLSYSTEM/agsXMPP.DLL

Mono.Security
    Assembly Version: 1.0.5000.0
    Win32 Version:
    CodeBase: file:///C:/EG2003/MLSYSTEM/Mono.Security.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.

Alex

2009-08-07, 17:36 #2

Member since Feb 2003 · 4449 posts · Location: Germany
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to me it looks like there is a System.NullReferenceException in your code. Try to surround your code in the OnMessage event with try catch,

Alex

[gja]

2009-08-08, 14:31 #3

Member since Jul 2009 · 19 posts
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thanks 4 the reply alex...i really appreciate it..