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custom property: Error: Can't load property type '(Namespace).CustomPropertiers.MyCustomProperty (NameSpace).Templates'


In our solution we have several Custom Properties that work as expected. But when I add a new one and apply it to a page template, I get an error in edit mode:

Error: Can't load property type '(Namespace).CustomPropertiers.MyCustomProperty (NameSpace).Templates' 

This error appears as a JS alert when trying to expand the page tree in which the property is used. Everything works when I remove my custom property (or replace it with another).

I have made several attempts in creating the property with different approaches:


  1. Visual studio wizard -> add new custom property
  2. Copy/pasting the example in Denis Yakovlev's article
  3. Copying one of our existing custom properties  and replacing classnames
but the problem persists. I seem to have exhausted my alternatives, so any help in resolving this issue is greatly apprecciated Frown


Ps: this might be discussed earlier, but I was unable to find any similar posts.








Oct 29, 2008 10:38

Forgot to mention: when this error occurs, I am unable to open the pages whatsoever. I get this exception:

[EPiServerException: Can't load property type '(nnnnn).CustomProperties.MyCustomProperty.MyCustomProperty, (nnnnn).Templates']
EPiServer.Core.PropertyData.CreatePropertyDataObject(String assemblyName, String typeName) +633
EPiServer.DataAbstraction.PageDefinition.CreatePropertyData() +31
EPiServer.Core.PropertyDataCollectionFacade.EnsureAllPageTypeProperties(String languageBranch, PropertyDataCollection props) +481
EPiServer.Core.PropertyDataCollectionFacade.InitializeData(Boolean clearCommonProperties) +191
EPiServer.Core.PageDataFacade.InitializeData() +45 


Oct 29, 2008 10:54

Ahem, this was a configuration error where Cruise Control failed to include the CP in build. 



Oct 30, 2008 16:09
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