Compilation errors in Reference.cs after adding a Service Reference caused by multi-part namespace

I found the answer here somewhat unclear, so I thought I would add this as an example (I would do it in the comments but it looks better here):

So I have this as my default namespace:

namespace RelatedData.Loader

But I also add a class named:

 public class RelatedData
{
}

Because the class name matches a portion of the namespace when it generates your proxy with Add Service Reference it gets confused.

The answer here was to rename my class:

 public class RelatedDataItem

Ahh well I found the cause eventually.

I'm working against a very large third party WCF API and ... one of their namespaces is LameCompany.System (!!) Carnage then ensues...

Arrrgghhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh

The lesson to learn here is when Visual Studio/.net compiler stops recognising the BCL's System namespace you have a namespace/type in your project called System. Find it, remove it, shoot the developer that created it.

I found that having a class name similar to your namespace causes this.

Try renaming your class name