Parameter "AssemblyFiles" has invalid value

Issue

When  referencing an assembly the compiler fails with this error

 error MSB3248: Parameter "AssemblyFiles" has invalid value "C:\CruiseControl\...\myAssembly.dll". Culture is not supported. [C:\CruiseControl\Projects\TemplateSite\WebApp\WebApp.csproj]  
 error MSB3248: Parameter name: name [C:\CruiseControl\..\WebApp.csproj]  
 myAssembly is an invalid culture identifier. [C:\CruiseControl\..\WebApp.csproj]  

Cause

This is caused by an invalid value in the AssemblyCulture attribute in the Assembly.cs

 [assembly: AssemblyCulture("myInvalidValue")]  

Solution

Set the AssemblyCulture to a valid value e.g. en-US or da-DK or just set it to default

 [assembly: AssemblyCulture("")]