Error "A template containing a class feature must end with a class feature"

Question

I was developing a C# T4 pre-processed template, under Visual Studio 2010, when I have got the following compilaton error:

A template containing a class feature must end with a class feature

Answer 1

The error is caused by an invisible space after the last #>

It is also important to bear in mind, that invisible spaces may cause other hard-to-understand compile-errors.

If you want to see a bigger picture, just look at following links:

• A good example
• A good explanaton, by Ryan Pugh

Now that you are aware how harmfull invisible spaces can be when dealing with Text Templates, my advice is: Make them visible. If you don't know how to do it, see Jeef Widmer's blog