"Failed to compare" stacktrace when adding workflow items
HI guys,
I get the following error when trying to add any workflow items to any of my forms:
[NullReferenceException: Object reference not set to an instance of an object.]
Umbraco.Forms.Core.Common.ProviderCollection`1.(T , T ) +9
System.FunctorComparer`1.Compare(T x, T y) +19
System.Collections.Generic.ArraySortHelper`1.SwapIfGreaterWithItems(T[] keys, IComparer`1 comparer, Int32 a, Int32 b) +91
System.Collections.Generic.ArraySortHelper`1.QuickSort(T[] keys, Int32 left, Int32 right, IComparer`1 comparer) +58
System.Collections.Generic.ArraySortHelper`1.Sort(T[] keys, Int32 index, Int32 length, IComparer`1 comparer) +93
[InvalidOperationException: Failed to compare two elements in the array.]
System.Collections.Generic.ArraySortHelper`1.Sort(T[] keys, Int32 index, Int32 length, IComparer`1 comparer) +330
System.Array.Sort(T[] array, Int32 index, Int32 length, IComparer`1 comparer) +186
System.Collections.Generic.List`1.Sort(Comparison`1 comparison) +108
Umbraco.Forms.Core.Common.ProviderCollection`1.GetProviders() +448
Umbraco.Forms.UI.Dialogs.editWorkflowDialog.Page_Load(Object sender, EventArgs e) +294
System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +14
System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +35
System.Web.UI.Control.OnLoad(EventArgs e) +91
umbraco.BasePages.BasePage.OnLoad(EventArgs e) +14
System.Web.UI.Control.LoadRecursive() +74
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +2207
I did have two custom workflow items being developed, but I've now removed these from my source code and recompiled, and I still get this error even after recycling my app pool.
All I can think of is removing ALL foreign DLL's from the bin folder, do an IISReset and start adding them one by one. App pool recycle is sometimes not enough.
Found my problem - I'm a n00b... basically I'd added Courier references to the project but uninstalled Courier, then installed Contour, but not added all of the Contour references in my VS project, so I was missing Umbraco.Forms.Core.Providers.dll. #facepalm.
For future refrence. I had this error and resolved it by adding the constructor as described here:http://our.umbraco.org/projects/umbraco-pro/contour/documentation/Developer/Extending-Contour/Adding-a-Type
"Failed to compare" stacktrace when adding workflow items
HI guys,
I get the following error when trying to add any workflow items to any of my forms:
I did have two custom workflow items being developed, but I've now removed these from my source code and recompiled, and I still get this error even after recycling my app pool.
Any help/advice appreciated.
Best,
Benjamin
All I can think of is removing ALL foreign DLL's from the bin folder, do an IISReset and start adding them one by one. App pool recycle is sometimes not enough.
Take a look at Contour Contrib workflows as well you might've forgotten stuff.
I'll give it a whirl - thanks Sebastiaan :-)
Found my problem - I'm a n00b... basically I'd added Courier references to the project but uninstalled Courier, then installed Contour, but not added all of the Contour references in my VS project, so I was missing Umbraco.Forms.Core.Providers.dll. #facepalm.
Benjamin
For future refrence. I had this error and resolved it by adding the constructor as described here:http://our.umbraco.org/projects/umbraco-pro/contour/documentation/Developer/Extending-Contour/Adding-a-Type
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