Error in Logs

Topics: Troubleshooting
Jun 26, 2012 at 1:53 AM
Edited Jun 26, 2012 at 1:54 AM

Hi Piotr,

I have been using Orchard since 1.3 version. Now, using 1.4.2. In each of these versions, I see the same error message in the logs. 
Orchard.ContentManagement.Drivers.Coordinators.ContentPartDriverCoordinator - ArgumentNullException thrown from IContentPartDriver by Szmyd.Orchard.Modules.Menu.Drivers.BreadcrumbsPartDriver
System.ArgumentNullException: Value cannot be null.
Parameter name: source
at System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source)
at Szmyd.Orchard.Modules.Menu.Drivers.BreadcrumbsPartDriver.<>c__DisplayClass5.b__4()
at Orchard.ContentManagement.Drivers.ContentPartDriver`1.<>c__DisplayClassd.b__c(BuildShapeContext ctx) in C:\Projects\Orchard\ContentManagement\Drivers\ContentPartDriver.cs:line 108
at Orchard.ContentManagement.Drivers.ContentPartDriver`1.<>c__DisplayClass13.b__12(BuildShapeContext ctx) in C:\Projects\Orchard\ContentManagement\Drivers\ContentPartDriver.cs:line 116
at Orchard.ContentManagement.Drivers.ContentShapeResult.ApplyImplementation(BuildShapeContext context, String displayType) in C:\Projects\Orchard\ContentManagement\Drivers\ContentShapeResult.cs:line 37
at Orchard.ContentManagement.Drivers.ContentShapeResult.Apply(BuildDisplayContext context) in C:\Projects\Orchard\ContentManagement\Drivers\ContentShapeResult.cs:line 21
at Orchard.ContentManagement.Drivers.Coordinators.ContentPartDriverCoordinator.<>c__DisplayClassa.b__9(IContentPartDriver driver) in C:\Projects\Orchard\ContentManagement\Drivers\Coordinators\ContentPartDriverCoordinator.cs:line 49
at Orchard.InvokeExtensions.Invoke[TEvents](IEnumerable`1 events, Action`1 dispatch, ILogger logger) in C:\Projects\Orchard\InvokeExtensions.cs:line 19
This error is generated every time I hit a page.
Any idea of why this error might be occuring?
Thanks!