Yo, I'm working on tweaking a specific mod, and I succeeded in doing so, however, I can't open "Project Settings", and it throws Microsoft .NET Framework exception. Now I know that this is not technically mod question, but it's kinda Mod Engine, so I guess it fits here.

The error I get is
[Linked Image from i.imgur.com]
And here's the details:

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

************** Exception Text **************
System.ArgumentException: An item with the same key has already been added.
   at System.ThrowHelper.ThrowArgumentException(ExceptionResource resource)
   at System.Collections.Generic.Dictionary`2.Insert(TKey key, TValue value, Boolean add)
   at EoCPlugin.ProjectPlugin.DescFromSettings(ModSettings settings)
   at EoCPlugin.ProjectPlugin.OpenSettings(Object sender, EventArgs e)
   at System.Windows.Forms.ToolStripItem.RaiseEvent(Object key, EventArgs e)
   at System.Windows.Forms.ToolStripMenuItem.OnClick(EventArgs e)
   at System.Windows.Forms.ToolStripItem.HandleClick(EventArgs e)
   at System.Windows.Forms.ToolStripItem.HandleMouseUp(MouseEventArgs e)
   at System.Windows.Forms.ToolStrip.OnMouseUp(MouseEventArgs mea)
   at System.Windows.Forms.ToolStripDropDown.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.ToolStrip.WndProc(Message& m)
   at System.Windows.Forms.ToolStripDropDown.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: 4.8.4400.0 built by: NET48REL1LAST_C
    CodeBase: file:///C:/Windows/Microsoft.NET/Framework64/v4.0.30319/mscorlib.dll
----------------------------------------
Glasses
    Assembly Version: 1.0.7.0
    Win32 Version: 3.6.51.9303
    CodeBase: file:///D:/SteamLibrary/steamapps/common/The%20Divinity%20Engine%202/DefEd/DivinityEngine2.exe
----------------------------------------
PresentationFramework
    Assembly Version: 4.0.0.0
    Win32 Version: 4.8.4390.0
    CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/PresentationFramework/v4.0_4.0.0.0__31bf3856ad364e35/PresentationFramework.dll
----------------------------------------
WindowsBase
    Assembly Version: 4.0.0.0
    Win32 Version: 4.8.4390.0 built by: NET48REL1LAST_C
    CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/WindowsBase/v4.0_4.0.0.0__31bf3856ad364e35/WindowsBase.dll
----------------------------------------
System.Core
    Assembly Version: 4.0.0.0
    Win32 Version: 4.8.4390.0 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
    Assembly Version: 4.0.0.0
    Win32 Version: 4.8.4360.0 built by: NET48REL1LAST_C
    CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System/v4.0_4.0.0.0__b77a5c561934e089/System.dll
----------------------------------------
PresentationCore
    Assembly Version: 4.0.0.0
    Win32 Version: 4.8.4390.0 built by: NET48REL1LAST_C
    CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_64/PresentationCore/v4.0_4.0.0.0__31bf3856ad364e35/PresentationCore.dll
----------------------------------------
System.Xaml
    Assembly Version: 4.0.0.0
    Win32 Version: 4.8.4390.0 built by: NET48REL1LAST_C
    CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Xaml/v4.0_4.0.0.0__b77a5c561934e089/System.Xaml.dll
----------------------------------------
EditorFramework
    Assembly Version: 1.0.0.0
    Win32 Version: 1.0.0.0
    CodeBase: file:///D:/SteamLibrary/steamapps/common/The%20Divinity%20Engine%202/DefEd/EditorFramework.DLL
----------------------------------------
LSFrameworkPlugin
    Assembly Version: 1.0.0.1
    Win32 Version: 
    CodeBase: file:///D:/SteamLibrary/steamapps/common/The%20Divinity%20Engine%202/DefEd/LSFrameworkPlugin.DLL
----------------------------------------
System.Windows.Forms
    Assembly Version: 4.0.0.0
    Win32 Version: 4.8.4400.0 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.Drawing
    Assembly Version: 4.0.0.0
    Win32 Version: 4.8.4390.0 built by: NET48REL1LAST_C
    CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Drawing/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll
----------------------------------------
LSToolFramework
    Assembly Version: 1.0.0.1
    Win32 Version: 
    CodeBase: file:///D:/SteamLibrary/steamapps/common/The%20Divinity%20Engine%202/DefEd/LSToolFramework.DLL
----------------------------------------
LSFrameworkPluginCSharp
    Assembly Version: 1.0.0.0
    Win32 Version: 1.0.0.0
    CodeBase: file:///D:/SteamLibrary/steamapps/common/The%20Divinity%20Engine%202/DefEd/LSFrameworkPluginCSharp.DLL
----------------------------------------
LSCSharpCore
    Assembly Version: 1.0.0.0
    Win32 Version: 1.0.0.0
    CodeBase: file:///D:/SteamLibrary/steamapps/common/The%20Divinity%20Engine%202/DefEd/LSCSharpCore.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.Xml
    Assembly Version: 4.0.0.0
    Win32 Version: 4.8.4084.0 built by: NET48REL1
    CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Xml/v4.0_4.0.0.0__b77a5c561934e089/System.Xml.dll
----------------------------------------
PresentationFramework.Aero2
    Assembly Version: 4.0.0.0
    Win32 Version: 4.8.4084.0 built by: NET48REL1
    CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/PresentationFramework.Aero2/v4.0_4.0.0.0__31bf3856ad364e35/PresentationFramework.Aero2.dll
----------------------------------------
WindowsFormsIntegration
    Assembly Version: 4.0.0.0
    Win32 Version: 4.8.4084.0 built by: NET48REL1
    CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/WindowsFormsIntegration/v4.0_4.0.0.0__31bf3856ad364e35/WindowsFormsIntegration.dll
----------------------------------------
Xceed.Wpf.AvalonDock
    Assembly Version: 3.7.0.0
    Win32 Version: 3.7.0.0
    CodeBase: file:///D:/SteamLibrary/steamapps/common/The%20Divinity%20Engine%202/DefEd/Xceed.Wpf.AvalonDock.DLL
----------------------------------------
PresentationFramework-SystemXml
    Assembly Version: 4.0.0.0
    Win32 Version: 4.8.4084.0
    CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/PresentationFramework-SystemXml/v4.0_4.0.0.0__b77a5c561934e089/PresentationFramework-SystemXml.dll
----------------------------------------
Xceed.Wpf.Toolkit
    Assembly Version: 3.7.0.0
    Win32 Version: 3.7.0.0
    CodeBase: file:///D:/SteamLibrary/steamapps/common/The%20Divinity%20Engine%202/DefEd/Xceed.Wpf.Toolkit.DLL
----------------------------------------
UIAutomationTypes
    Assembly Version: 4.0.0.0
    Win32 Version: 4.8.4390.0 built by: NET48REL1LAST_C
    CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/UIAutomationTypes/v4.0_4.0.0.0__31bf3856ad364e35/UIAutomationTypes.dll
----------------------------------------
UIAutomationProvider
    Assembly Version: 4.0.0.0
    Win32 Version: 4.8.4390.0 built by: NET48REL1LAST_C
    CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/UIAutomationProvider/v4.0_4.0.0.0__31bf3856ad364e35/UIAutomationProvider.dll
----------------------------------------
UiLibrary
    Assembly Version: 1.0.0.0
    Win32 Version: 1.0.0.0
    CodeBase: file:///D:/SteamLibrary/steamapps/common/The%20Divinity%20Engine%202/DefEd/UiLibrary.DLL
----------------------------------------
MessagePlugin
    Assembly Version: 1.0.0.0
    Win32 Version: 1.0.0.0
    CodeBase: file:///D:/SteamLibrary/steamapps/common/The%20Divinity%20Engine%202/DefEd/MessagePlugin.DLL
----------------------------------------
EoCPlugin
    Assembly Version: 1.0.0.1
    Win32 Version: 
    CodeBase: file:///D:/SteamLibrary/steamapps/common/The%20Divinity%20Engine%202/DefEd/EoCPlugin.DLL
----------------------------------------
WeifenLuo.WinFormsUI.Docking
    Assembly Version: 2.5.0.24441
    Win32 Version: 2.5.0.0
    CodeBase: file:///D:/SteamLibrary/steamapps/common/The%20Divinity%20Engine%202/DefEd/WeifenLuo.WinFormsUI.Docking.DLL
----------------------------------------
SmartPropertyGrid
    Assembly Version: 3.1.0.103
    Win32 Version: 3.1.0.103
    CodeBase: file:///D:/SteamLibrary/steamapps/common/The%20Divinity%20Engine%202/DefEd/SmartPropertyGrid.DLL
----------------------------------------
Microsoft.GeneratedCode
    Assembly Version: 1.0.0.0
    Win32 Version: 4.8.4084.0 built by: NET48REL1
    CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Xml/v4.0_4.0.0.0__b77a5c561934e089/System.Xml.dll
----------------------------------------
Microsoft.GeneratedCode
    Assembly Version: 1.0.0.0
    Win32 Version: 4.8.4084.0 built by: NET48REL1
    CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Xml/v4.0_4.0.0.0__b77a5c561934e089/System.Xml.dll
----------------------------------------
Xceed.Wpf.DataGrid.v6.5
    Assembly Version: 6.5.0.0
    Win32 Version: 6.5.0.0
    CodeBase: file:///D:/SteamLibrary/steamapps/common/The%20Divinity%20Engine%202/DefEd/Xceed.Wpf.DataGrid.v6.5.DLL
----------------------------------------
Xceed.Wpf.Controls.v6.5
    Assembly Version: 6.5.0.0
    Win32 Version: 6.5.0.0
    CodeBase: file:///D:/SteamLibrary/steamapps/common/The%20Divinity%20Engine%202/DefEd/Xceed.Wpf.Controls.v6.5.DLL
----------------------------------------
Newtonsoft.Json
    Assembly Version: 6.0.0.0
    Win32 Version: 6.0.5.17707
    CodeBase: file:///D:/SteamLibrary/steamapps/common/The%20Divinity%20Engine%202/DefEd/Newtonsoft.Json.DLL
----------------------------------------
EoCPluginCSharp
    Assembly Version: 1.0.0.0
    Win32 Version: 1.0.0.0
    CodeBase: file:///D:/SteamLibrary/steamapps/common/The%20Divinity%20Engine%202/DefEd/EoCPluginCSharp.DLL
----------------------------------------
MaterialPlugin
    Assembly Version: 1.0.0.1
    Win32 Version: 
    CodeBase: file:///D:/SteamLibrary/steamapps/common/The%20Divinity%20Engine%202/DefEd/MaterialPlugin.DLL
----------------------------------------
ResourceSelectorPlugin
    Assembly Version: 1.0.0.0
    Win32 Version: 1.0.0.0
    CodeBase: file:///D:/SteamLibrary/steamapps/common/The%20Divinity%20Engine%202/DefEd/ResourceSelectorPlugin.DLL
----------------------------------------
RootTemplateSelectorPlugin
    Assembly Version: 1.0.0.0
    Win32 Version: 1.0.0.0
    CodeBase: file:///D:/SteamLibrary/steamapps/common/The%20Divinity%20Engine%202/DefEd/RootTemplateSelectorPlugin.DLL
----------------------------------------
AllSpark.EngineLayer.EffectEditor
    Assembly Version: 1.0.0.0
    Win32 Version: 1.0.0.0
    CodeBase: file:///D:/SteamLibrary/steamapps/common/The%20Divinity%20Engine%202/DefEd/AllSpark.EngineLayer.EffectEditor.DLL
----------------------------------------
AllSpark.EngineLayer.EffectPreviewerPlugin
    Assembly Version: 1.0.0.0
    Win32 Version: 1.0.0.0
    CodeBase: file:///D:/SteamLibrary/steamapps/common/The%20Divinity%20Engine%202/DefEd/AllSpark.EngineLayer.EffectPreviewerPlugin.DLL
----------------------------------------
StoryPlugin
    Assembly Version: 1.0.0.1
    Win32 Version: 
    CodeBase: file:///D:/SteamLibrary/steamapps/common/The%20Divinity%20Engine%202/DefEd/StoryPlugin.DLL
----------------------------------------
DialogPlugin
    Assembly Version: 0.0.0.0
    Win32 Version: 
    CodeBase: file:///D:/SteamLibrary/steamapps/common/The%20Divinity%20Engine%202/DefEd/DialogPlugin.DLL
----------------------------------------
DialogPluginUI
    Assembly Version: 1.0.0.1
    Win32 Version: 
    CodeBase: file:///D:/SteamLibrary/steamapps/common/The%20Divinity%20Engine%202/DefEd/DialogPluginUI.DLL
----------------------------------------
EoCUI
    Assembly Version: 1.0.0.0
    Win32 Version: 1.0.0.0
    CodeBase: file:///D:/SteamLibrary/steamapps/common/The%20Divinity%20Engine%202/DefEd/EoCUI.DLL
----------------------------------------
VersionControlPlugin
    Assembly Version: 1.0.0.0
    Win32 Version: 1.0.0.0
    CodeBase: file:///D:/SteamLibrary/steamapps/common/The%20Divinity%20Engine%202/DefEd/VersionControlPlugin.DLL
----------------------------------------
TagEditor
    Assembly Version: 1.0.0.0
    Win32 Version: 1.0.0.0
    CodeBase: file:///D:/SteamLibrary/steamapps/common/The%20Divinity%20Engine%202/DefEd/TagEditor.DLL
----------------------------------------
VoiceBarkPlugin
    Assembly Version: 1.0.0.0
    Win32 Version: 1.0.0.0
    CodeBase: file:///D:/SteamLibrary/steamapps/common/The%20Divinity%20Engine%202/DefEd/VoiceBarkPlugin.DLL
----------------------------------------
WorldOutlinerPlugin.WorldOutliner
    Assembly Version: 1.0.0.0
    Win32 Version: 1.0.0.0
    CodeBase: file:///D:/SteamLibrary/steamapps/common/The%20Divinity%20Engine%202/DefEd/WorldOutlinerPlugin.WorldOutliner.DLL
----------------------------------------
JournalEditor
    Assembly Version: 1.0.0.0
    Win32 Version: 1.0.0.0
    CodeBase: file:///D:/SteamLibrary/steamapps/common/The%20Divinity%20Engine%202/DefEd/JournalEditor.DLL
----------------------------------------
LSFrameworkUI
    Assembly Version: 1.0.0.0
    Win32 Version: 1.0.0.0
    CodeBase: file:///D:/SteamLibrary/steamapps/common/The%20Divinity%20Engine%202/DefEd/LSFrameworkUI.DLL
----------------------------------------
Stats.StatsEditor
    Assembly Version: 1.0.0.0
    Win32 Version: 1.0.0.0
    CodeBase: file:///D:/SteamLibrary/steamapps/common/The%20Divinity%20Engine%202/DefEd/Stats.StatsEditor.DLL
----------------------------------------
Genome.AnimEditor
    Assembly Version: 1.0.0.0
    Win32 Version: 1.0.0.0
    CodeBase: file:///D:/SteamLibrary/steamapps/common/The%20Divinity%20Engine%202/DefEd/Genome.AnimEditor.DLL
----------------------------------------
FreeImageNET
    Assembly Version: 3.15.1.0
    Win32 Version: 3.15.1.0
    CodeBase: file:///D:/SteamLibrary/steamapps/common/The%20Divinity%20Engine%202/DefEd/FreeImageNET.DLL
----------------------------------------
PresentationFramework-SystemCore
    Assembly Version: 4.0.0.0
    Win32 Version: 4.8.4084.0
    CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/PresentationFramework-SystemCore/v4.0_4.0.0.0__b77a5c561934e089/PresentationFramework-SystemCore.dll
----------------------------------------
System.Data
    Assembly Version: 4.0.0.0
    Win32 Version: 4.8.4270.0 built by: NET48REL1LAST_C
    CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_64/System.Data/v4.0_4.0.0.0__b77a5c561934e089/System.Data.dll
----------------------------------------
System.Data.Entity
    Assembly Version: 4.0.0.0
    Win32 Version: 4.8.4084.0 built by: NET48REL1
    CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Data.Entity/v4.0_4.0.0.0__b77a5c561934e089/System.Data.Entity.dll
----------------------------------------
System.Runtime.Serialization
    Assembly Version: 4.0.0.0
    Win32 Version: 4.8.4250.0 built by: NET48REL1LAST_C
    CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Runtime.Serialization/v4.0_4.0.0.0__b77a5c561934e089/System.Runtime.Serialization.dll
----------------------------------------
PerforcePlugin
    Assembly Version: 1.0.0.0
    Win32 Version: 1.0.0.0
    CodeBase: file:///D:/SteamLibrary/steamapps/common/The%20Divinity%20Engine%202/DefEd/PerforcePlugin.DLL
----------------------------------------
WikiHelpPlugin
    Assembly Version: 1.0.0.0
    Win32 Version: 1.0.0.0
    CodeBase: file:///D:/SteamLibrary/steamapps/common/The%20Divinity%20Engine%202/DefEd/WikiHelpPlugin.DLL
----------------------------------------
MaterialGenerator
    Assembly Version: 1.0.0.0
    Win32 Version: 1.0.0.0
    CodeBase: file:///D:/SteamLibrary/steamapps/common/The%20Divinity%20Engine%202/DefEd/MaterialGenerator.DLL
----------------------------------------
NodeGraph
    Assembly Version: 1.0.0.0
    Win32 Version: 1.0.0.0
    CodeBase: file:///D:/SteamLibrary/steamapps/common/The%20Divinity%20Engine%202/DefEd/NodeGraph.DLL
----------------------------------------
System.Xml.Linq
    Assembly Version: 4.0.0.0
    Win32 Version: 4.8.4084.0 built by: NET48REL1
    CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Xml.Linq/v4.0_4.0.0.0__b77a5c561934e089/System.Xml.Linq.dll
----------------------------------------
Skybound.VisualTips
    Assembly Version: 1.0.2.0
    Win32 Version: 1.0.2.0
    CodeBase: file:///D:/SteamLibrary/steamapps/common/The%20Divinity%20Engine%202/DefEd/Skybound.VisualTips.DLL
----------------------------------------
PresentationFramework-SystemXmlLinq
    Assembly Version: 4.0.0.0
    Win32 Version: 4.8.4084.0
    CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/PresentationFramework-SystemXmlLinq/v4.0_4.0.0.0__b77a5c561934e089/PresentationFramework-SystemXmlLinq.dll
----------------------------------------
AllSpark.DataLayer
    Assembly Version: 1.0.0.0
    Win32 Version: 1.0.0.0
    CodeBase: file:///D:/SteamLibrary/steamapps/common/The%20Divinity%20Engine%202/DefEd/AllSpark.DataLayer.DLL
----------------------------------------
Stats.StatsDataModel
    Assembly Version: 1.0.0.0
    Win32 Version: 1.0.0.0
    CodeBase: file:///D:/SteamLibrary/steamapps/common/The%20Divinity%20Engine%202/DefEd/Stats.StatsDataModel.DLL
----------------------------------------
Xceed.Wpf.Themes
    Assembly Version: 3.0.0.0
    Win32 Version: 3.0.0.0
    CodeBase: file:///D:/SteamLibrary/steamapps/common/The%20Divinity%20Engine%202/DefEd/Xceed.Wpf.Themes.DLL
----------------------------------------
PresentationFramework-SystemData
    Assembly Version: 4.0.0.0
    Win32 Version: 4.8.4390.0
    CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/PresentationFramework-SystemData/v4.0_4.0.0.0__b77a5c561934e089/PresentationFramework-SystemData.dll
----------------------------------------
PresentationFramework.Aero
    Assembly Version: 4.0.0.0
    Win32 Version: 4.8.4084.0 built by: NET48REL1
    CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/PresentationFramework.Aero/v4.0_4.0.0.0__31bf3856ad364e35/PresentationFramework.Aero.dll
----------------------------------------
Microsoft.GeneratedCode
    Assembly Version: 1.0.0.0
    Win32 Version: 4.8.4084.0 built by: NET48REL1
    CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Xml/v4.0_4.0.0.0__b77a5c561934e089/System.Xml.dll
----------------------------------------
System.Numerics
    Assembly Version: 4.0.0.0
    Win32 Version: 4.8.4084.0 built by: NET48REL1
    CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Numerics/v4.0_4.0.0.0__b77a5c561934e089/System.Numerics.dll
----------------------------------------
Accessibility
    Assembly Version: 4.0.0.0
    Win32 Version: 4.8.4084.0 built by: NET48REL1
    CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/Accessibility/v4.0_4.0.0.0__b03f5f7f11d50a3a/Accessibility.dll
----------------------------------------
Xceed.Wpf.AvalonDock.XmlSerializers
    Assembly Version: 3.7.0.0
    Win32 Version: 3.7.0.0
    CodeBase: file:///D:/SteamLibrary/steamapps/common/The%20Divinity%20Engine%202/DefEd/Xceed.Wpf.AvalonDock.XmlSerializers.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.

I'd really appreciate any help. If needed, I can provide with exact step-by-step things I did with mod files, and I'm talking about extracting existing package, moving things around, creating new project, etc., not about what values I changed or whatever.

I tried googling the issue with "Same key has already been added", but I didn't get any closer to solving the issue frown