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WindowsForms LoaderException

My app has a base Form class, called FunctionForm, from which all forms inherit.
This worked fine last week, when I was using VS.NET 2005 Pro but this week,
while using VS.NET 2005 Team System Developer, I get the following while
working in the designer. The form compiles and runs fine, but I can't design
it. Firstly, is the stack trace the LoaderExceptions property? Secondly,
how do I approach a work around?

Unable to load one or more of the requested types. Retrieve the LoaderExceptions
property for more information.

at System.Reflection.Module.GetTypesInternal(StackCra wlMark& stackMark)
at System.Reflection.Assembly.GetTypes()
at Microsoft.VisualStudio.Shell.Design.AssemblyObsole teEventArgs..ctor(Assembly
at Microsoft.VisualStudio.Design.VSDynamicTypeService .ReloadAssemblyIfChanged(String
at Microsoft.VisualStudio.Design.VSDynamicTypeService .CreateDynamicAssembly(String
at Microsoft.VisualStudio.Design.VSTypeResolutionServ ice.AssemblyEntry.get_Assembly()
at Microsoft.VisualStudio.Design.VSTypeResolutionServ ice.AssemblyEntry.Search(String
fullName, String typeName, Boolean ignoreTypeCase, Assembly& assembly, String
at Microsoft.VisualStudio.Design.VSTypeResolutionServ ice.SearchProjectEntries(AssemblyName
assemblyName, String typeName, Boolean ignoreTypeCase, Assembly& assembly)
at Microsoft.VisualStudio.Design.VSTypeResolutionServ ice.GetType(String typeName,
Boolean throwOnError, Boolean ignoreCase, ReferenceType refType)
at Microsoft.VisualStudio.Design.Serialization.CodeDo m.AggregateTypeResolutionService.GetType(String
name, Boolean throwOnError, Boolean ignoreCase)
at Microsoft.VisualStudio.Design.Serialization.CodeDo m.AggregateTypeResolutionService.GetType(String
at System.ComponentModel.Design.DesignerHost.System.C omponentModel.Design.IDesignerHost.GetType(String
at System.ComponentModel.Design.Serialization.CodeDom DesignerLoader.EnsureDocument(IDesignerSerializati onManager
at System.ComponentModel.Design.Serialization.CodeDom DesignerLoader.PerformLoad(IDesignerSerializationM anager
at Microsoft.VisualStudio.Design.Serialization.CodeDo m.VSCodeDomDesignerLoader.PerformLoad(IDesignerSer ializationManager
at System.ComponentModel.Design.Serialization.BasicDe signerLoader.BeginLoad(IDesignerLoaderHost
Dec 8 '05 #1
1 5591
I think you mean the bug somebody already found a work-around for in the
"User Control Designer Errors is [sic] VS2005 RC1" thread.

Change your AssemblyInfo.cs files in the UserControls DLLs as follows:
[assembly: AssemblyVersion("5.5.5")]

Where 5.5.5 is any hard-coded version number. The problem was the .* in it
causing the UserControl to have an auto-generated version that's different
than what your other DLL is expecting. As soon as you recompile it with
changes or something, you get the Unable to Load error.

BTW - Notice I called it a BUG. I truly believe it's a bug. There's a
rational explanation for what it's doing, but it is bound to cause a little
frustration for a lot of people.

Let me know if it works.
Jan 25 '06 #2

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