Castle Windsor upgrade causes TypeLoadException for generic types

Posted by Neil Barnwell on Stack Overflow See other posts from Stack Overflow or by Neil Barnwell
Published on 2010-06-02T22:59:01Z Indexed on 2010/06/02 23:14 UTC
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I have the following mapping in my Castle Windsor xml file which has worked okay (unchanged) for some time:

<component id="defaultBasicRepository"
           service="MyApp.Models.Repositories.IBasicRepository`1, MyApp.Models"
           type="MyApp.Models.Repositories.Linq.BasicRepository`1, MyApp.Models"
           lifestyle="perWebRequest"/>

I got this from the Windsor documentation at http://www.castleproject.org/container/documentation/v1rc3/usersguide/genericssupport.html.

Since I upgraded Windsor, I now get the following exception at runtime:

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.TypeLoadException: GenericArguments[0], 'T', on 'MyApp.Models.Repositories.Linq.BasicRepository`1[TEntity]' violates the constraint of type parameter 'TEntity'.

Source Error:

Line 44: public static void ConfigureIoC()
Line 45: {
Line 46: var windsor = new WindsorContainer("Windsor.xml");
Line 47:
Line 48: ServiceLocator.SetLocatorProvider(() => new WindsorServiceLocator(windsor));

I'm using ASP.NET MVC 1.0, Visual Studio 2008 and Castle Windsor as downloaded from http://sourceforge.net/projects/castleproject/files/InversionOfControl/2.1/Castle-Windsor-2.1.1.zip/download

Can anyone shed any light on this? I'm sure the upgrade of Castle Windsor is what caused it - it's been working well for ages.

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