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Mono Develop giving an error during startup

After the splash screen is displayed, loading goes for about 75% when this error is thrown up:

Quote:

System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.TypeInitializationException: An exception was thrown by the type initializer for MonoDevelop.GtkCore.GuiBuilder.GuiBuilderService ---> System.TypeInitializationException: An exception was thrown by the type initializer for Stetic.Registry ---> System.TypeInitializationException: An exception was thrown by the type initializer for Stetic.TypedClassDescriptor ---> GLib.GException: Icon 'gtk-missing-image' not present in theme
in <0x00099> Gtk.IconTheme:LoadIcon (System.String icon_name, Int32 size, IconLookupFlags flags)
in <0x00024> Stetic.TypedClassDescriptor:.cctor ()--- End of inner exception stack trace ---

in <0x00000> <unknown method>
in <0x00020> Stetic.AssemblyWidgetLibrary:LoadClassDescriptor (System.Xml.XmlElement element)
in <0x00222> Stetic.WidgetLibrary:Load (System.Xml.XmlDocument objects)
in <0x00060> Stetic.AssemblyWidgetLibrary:Load ()
in <0x0002a> Stetic.Registry:RegisterWidgetLibrary (Stetic.WidgetLibrary library)
in <0x0006b> Stetic.Registry:.cctor ()--- End of inner exception stack trace ---

in <0x00000> <unknown method>
in <0x00077> Stetic.Project:.ctor ()
in <0x000eb> MonoDevelop.GtkCore.GuiBuilder.GuiBuilderService:.cctor ()--- End of inner exception stack trace ---

in <0x00000> <unknown method>
in <0x00058> MonoDevelop.GtkCore.GuiBuilder.GuiBuilderPalettePad:.ctor ()
in <0x00000> <unknown method>
in (wrapper managed-to-native) System.Reflection.MonoCMethod:InternalInvoke (object,object[])
in <0x0008d> System.Reflection.MonoCMethod:Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture)--- End of inner exception stack trace ---

in <0x0010e> System.Reflection.MonoCMethod:Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture)
in <0x0001c> System.Reflection.MonoCMethod:Invoke (BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture)
in <0x00035> System.Reflection.ConstructorInfo:Invoke (System.Object[] parameters)
in <0x00105> System.Activator:CreateInstance (System.Type type, Boolean nonPublic)
in <0x0000c> System.Activator:CreateInstance (System.Type type)
in <0x0001f> MonoDevelop.Core.AddIns.AddIn:CreateObject (System.String className)
in <0x00083> MonoDevelop.Ide.Codons.PadCodon:CreatePad ()
in <0x00014> MonoDevelop.Ide.Codons.PadCodon:BuildItem (System.Object owner, System.Collections.ArrayList subItems, MonoDevelop.Core.AddIns.ConditionCollection conditions)
in <0x00147> MonoDevelop.Core.AddIns.DefaultAddInTreeNode:BuildChildItems (System.Object caller)
in <0x00063> MonoDevelop.Core.AddIns.AddInService:GetTreeItems (System.String path, System.Type itemType)
in <0x0005c> MonoDevelop.Ide.Gui.DefaultWorkbench:InitializeLayout (IWorkbenchLayout workbenchLayout)
in <0x0009a> MonoDevelop.Ide.Gui.Workbench:Initialize (IProgressMonitor monitor)
in <0x000ab> MonoDevelop.Ide.Gui.IdeApp:Initialize (IProgressMonitor monitor)
in <0x008a4> MonoDevelop.Ide.Gui.IdeStartup:Run (System.String[] args)

Someone please help, or direct me to a place on the internet where i can have this question answered.

MonoDevelop Error During Startup, Loading Workbench

Error
=================================================================
Got a SIGSEGV while executing native code. This usually indicates
a fatal error in the mono runtime or one of the native libraries
used by your application.
=================================================================

Stacktrace:

in (wrapper managed-to-native) Gecko.WebControl:gtk_moz_embed_render_data (intptr,intptr,uint,intptr,intptr) <0x4>
in (wrapper managed-to-native) Gecko.WebControl:gtk_moz_embed_render_data (intptr,intptr,uint,intptr,intptr) <0xffffffc8>
in Gecko.WebControl:RenderData (string,string,string) <0x50>
in MonoDevelop.Components.HtmlControl.MozillaControl:InitializeWithBase (string) <0x25>
in MonoDevelop.Components.HtmlControl.MozillaControl:DelayedInitialize () <0xf>
in MonoDevelop.WelcomePage.WelcomePageView:Initialize (object) <0x10>
in MonoDevelop.WelcomePage.ShowWelcomePageOnStartUpHandler:Run () <0x6b>
in (wrapper runtime-invoke) System.Object:runtime_invoke_void (object,intptr,intptr,intptr) <0x6687a27>
in (wrapper managed-to-native) System.Reflection.MonoMethod:InternalInvoke (object,object[]) <0x4>
in (wrapper managed-to-native) System.Reflection.MonoMethod:InternalInvoke (object,object[]) <0xfffffc75>
in System.Reflection.MonoMethod:Invoke (object,System.Reflection.BindingFlags,System.Reflection.Binder,object[],System.Globalization.CultureInfo) <0x8d>
in System.Reflection.MethodBase:Invoke (object,object[]) <0x1a>
in MonoDevelop.Ide.Gui.IdeApp:Initialize (MonoDevelop.Core.IProgressMonitor) <0x4c7>
in MonoDevelop.Ide.Gui.IdeStartup:Run (string[]) <0x8ec>
in MonoDevelop.Core.AddIns.AddInService:StartApplication (string,string[]) <0x176>
in MonoDevelop.Startup.SharpDevelopMain:Main (string[]) <0x39>
in (wrapper runtime-invoke) System.Object:runtime_invoke_int_string[] (object,intptr,intptr,intptr) <0x7e24d77>

Native stacktrace:

/opt/mono-1.1.15/bin/mono(mono_handle_native_sigsegv+0xbb) [0x8153d0b]
/opt/mono-1.1.15/bin/mono [0x813e66f]
[0x473440]
/usr/lib/mozilla-1.7.8/libgtkembedmoz.so(_ZN12EmbedPrivate10OpenStreamEPKcS1_+0x2e) [0x1d55efa]
/usr/lib/mozilla-1.7.8/libgtkembedmoz.so(gtk_moz_embed_render_data+0x48) [0x1d54028]
[0x4c3603e]
[0x4c35fd1]
[0x4c35f66]
[0x4c35f28]
[0x4c35f01]
[0x1eacdec]
[0x1ab6b21]
/opt/mono-1.1.15/bin/mono [0x813e520]
/opt/mono-1.1.15/bin/mono(mono_runtime_invoke+0x27) [0x80d7b67]
/opt/mono-1.1.15/bin/mono(mono_runtime_invoke_array+0x270) [0x80d9050]
/opt/mono-1.1.15/bin/mono [0x80c7490]
[0x59beba]
[0x59bb06]
[0x9222eb3]
[0x7140498]
[0x921b8ed]
[0x5a7487]
[0x319892]
[0x3197d4]
/opt/mono-1.1.15/bin/mono [0x813e520]
/opt/mono-1.1.15/bin/mono(mono_runtime_invoke+0x27) [0x80d7b67]
/opt/mono-1.1.15/bin/mono(mono_runtime_exec_main+0xb1) [0x80d8cf1]
/opt/mono-1.1.15/bin/mono(mono_runtime_run_main+0x171) [0x80d88c1]
/opt/mono-1.1.15/bin/mono(strftime+0x1ba2) [0x805c602]
/opt/mono-1.1.15/bin/mono(mono_main+0x857) [0x805cfe7]
/opt/mono-1.1.15/bin/mono(__fxstat64+0x12b) [0x805b9bb]
/lib/libc.so.6(__libc_start_main+0xc6) [0x67cde6]
/opt/mono-1.1.15/bin/mono(sinh+0x41) [0x805b911]
********************************************************
Solution:
********************************************************
I've Erased the directory MonoDevelop that it's in /<user>/.config/MonoDevelop
Then i've started again MonoDevelop an created again the configuration and all was Great!!!