This is a recurring error – “Did you know that your dialect needs to be explicitly supplied as of VB.NET 4.0?”. When you use VB.NET, you must include the language’s dialect when specifying your locale. This is the default for all languages. However, if you want to use another language, you will need to supply the dialect explicitly.
Did You Know That Your Dialect Needs to Be Explicitly Specified As of VB.NET 4.0?