Unhandled Exception Error

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ManOfTime
Posts: 3
Joined: 13 Oct 2020, 13:23

Unhandled Exception Error

Post by ManOfTime »

Hi all! I am getting an 'Unhandled exception error' when running MidiKey2Key, but only sometimes.

When I trigger the app to run either on Windows startup, or using task scheduler to have it open on system unlock, it throws the error.

When I start the app manually, it usually works at least on the second try. Any help would be much appreciated.
ManOfTime
Posts: 3
Joined: 13 Oct 2020, 13:23

Here is the error

Post by ManOfTime »

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 PureMidi.Monitor.Monitor.checkBoxLogToWindow_CheckedChanged(Object sender, EventArgs e)
at System.Windows.Forms.CheckBox.OnCheckedChanged(EventArgs e)
at System.Windows.Forms.CheckBox.set_CheckState(CheckState value)
at System.Windows.Forms.CheckBox.set_Checked(Boolean value)
at PureMidi.Monitor.Monitor.StartUpSequence2()
at PureMidi.Monitor.Monitor.Monitor_Shown(Object sender, EventArgs e)
at System.Windows.Forms.Form.OnShown(EventArgs e)
at System.Windows.Forms.Control.InvokeMarshaledCallbackHelper(Object obj)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Windows.Forms.Control.InvokeMarshaledCallback(ThreadMethodEntry tme)
at System.Windows.Forms.Control.InvokeMarshaledCallbacks()


************** Loaded Assemblies **************
mscorlib
Assembly Version: 4.0.0.0
Win32 Version: 4.8.4220.0 built by: NET48REL1LAST_C
CodeBase: file:///C:/Windows/Microsoft.NET/Framework64/v4.0.30319/mscorlib.dll
----------------------------------------
MidiKey2Key
Assembly Version: 2.3.7517.30124
Win32 Version: 2.3.5.0
CodeBase: file:///C:/Program%20Files/MidiKey2Key/MidiKey2Key.exe
----------------------------------------
System.Windows.Forms
Assembly Version: 4.0.0.0
Win32 Version: 4.8.4200.0 built by: NET48REL1LAST_C
CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Windows.Forms/v4.0_4.0.0.0__b77a5c561934e089/System.Windows.Forms.dll
----------------------------------------
System
Assembly Version: 4.0.0.0
Win32 Version: 4.8.4200.0 built by: NET48REL1LAST_C
CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System/v4.0_4.0.0.0__b77a5c561934e089/System.dll
----------------------------------------
System.Drawing
Assembly Version: 4.0.0.0
Win32 Version: 4.8.3752.0 built by: NET48REL1
CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Drawing/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll
----------------------------------------
System.Configuration
Assembly Version: 4.0.0.0
Win32 Version: 4.8.4190.0 built by: NET48REL1LAST_B
CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Configuration/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Configuration.dll
----------------------------------------
System.Core
Assembly Version: 4.0.0.0
Win32 Version: 4.8.4220.0 built by: NET48REL1LAST_C
CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Core/v4.0_4.0.0.0__b77a5c561934e089/System.Core.dll
----------------------------------------
System.Xml
Assembly Version: 4.0.0.0
Win32 Version: 4.8.3752.0 built by: NET48REL1
CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Xml/v4.0_4.0.0.0__b77a5c561934e089/System.Xml.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.
User avatar
Der Abt
Site Admin
Posts: 18
Joined: 14 Aug 2020, 11:30
Location: Fulda, Germany
Contact:

Re: Unhandled Exception Error

Post by Der Abt »

Other users reported such execption errorswhen launching MK2K too soon after windows start.
I think it is when the windows multimedia system is not fuklly loaded.

It definitely throws this exception, when Your MIDI port is already in use by another program.
Greetz
Der Abt

Creator of MidiKey2Key
https://midikey2key.de
ManOfTime
Posts: 3
Joined: 13 Oct 2020, 13:23

Re: Unhandled Exception Error

Post by ManOfTime »

Thank you, I'll try out delaying the start and hunting for anything that may be using the midi port before it launches.
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