Webmail lite ASP.NET issue?

Question

Hi,<br /> I have downloaded webmail lite asp.net website and try to build, I am getting below error-<br /> The type 'Domain' exists in both '10_App_Code, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null' and 'WebMail, Version=5.1.3.0, Culture=neutral, PublicKeyToken=null'<br /> If anyone already worked on this issue then let me know.<br /> <br /> Thanks.