DropDownMenu' Web Block is incompatible with the 'RichWidgets' eSpace definition

DropDownMenu' Web Block is incompatible with the 'RichWidgets' eSpace definition

  
Message:
[2] 'DropDownMenu' Web Block is incompatible with the 'RichWidgets' eSpace definition. Please update it.
Stack:
(Inner Exception of b829092b-332c-4fb6-9798-8a76bd243ec4)
   at proxy_survey_RichWidgets.Flows.FlowRichWidgets.WBlkDropDownMenu.get_wtMenuItem()
   at sssurvey.Flows.FlowCommon.WBlkMenu.FindControl(String id)
   at sssurvey.Flows.FlowCommon.WBlkMenu.InitializeComponent()
   at sssurvey.Flows.FlowCommon.WBlkMenu.OnInit(EventArgs e)
   at System.Web.UI.Control.InitRecursive(Control namingContainer)
   at System.Web.UI.Control.AddedControl(Control control, Int32 index)
   at ASP.homepage_aspx.__BuildControl__control7(Control __ctrl)
   at sssurvey.Flows.FlowCommon.WBlkLayout_Normal.OnInit(EventArgs e)
   at System.Web.UI.Control.InitRecursive(Control namingContainer)
   at System.Web.UI.Control.InitRecursive(Control namingContainer)
   at System.Web.UI.Control.InitRecursive(Control namingContainer)
   at System.Web.UI.Control.InitRecursive(Control namingContainer)
   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
-Env-
eSpaceVer: 6 (Id=42, PubId=1039, CompiledWith=8.0.0.12)
RequestUrl: http://localhost/survey/_Default.aspx (Method: GET)
AppDomain: /LM/W3SVC/1/ROOT/survey-64-130231986824999665
FilePath: C:\...\PS\running\survey.02111130746\
Locale: en-US
DateFormat: yyyy-MM-dd
PID: 7964 ('w3wp', Started='9/9/2013 7:44:53 AM', Priv=343Mb, Virt=5534Mb)
TID: 8
Thread Name:
.NET: 2.0.50727.6407
I would like someone to help me out with this error.

Thanks in advance

Regards.
Hi tamz,

It appears to be just some outdated references in your application. Are all the refences updated?

Regards.