Error message: Whitespace is not allowed at this location

Question

Hi While hoovering over a function name in a C# code I get the following tooltip message: XML comment contains invalid XML: Whitespace is not allowed at this location. I can not find a way to locate that whitespace location while running the function gives me 'object reference not set' exception message. I am not sure if those are related to each other but clearly I would like to fix the error. Can anyone help?

Vulpes · Answer

The chances are that you've got some character in there that XML has difficulty with such as: & > or If so I'd replace them with &  > and < respectively and see if that's any better.