Question

I have inherited a Web Application project (3 files per aspx page), along with a second solution which contains the business and datalayers as a class library. I created an empty solution, added the class library project to it, along with the Web Application. I then added a reference to the class library from the Web Application. When I try to debug the site, I get a parser error:

Parser Error Message: The type ‘Electro_Spec.Masters.MasterPage’ is ambiguous: it could come from assembly ‘C:\projects\esWOT3\WebSite\bin\Electro-Spec.DLL’ or from assembly ‘C:\projects\esWOT3\WebSite\bin\WebSite.DLL’. Please specify the assembly explicitly in the type name.

Why would this be? And how do I fix it?

EDIT the only reference to Electo_Spec.dll is from the Web Application “refrences”, the class library was added to the site via the add reference to existing project dialogue. If I remove it, the site won’t compile. Additionally the name of the web application is WebSite . . . thus the “Website.dll” . . . i believe, as I am new to web applicaitons (versus .net websites). Oh and this was all built in an empty solution. Additionally I have tried renaming the MasterPage to MasterPage1 to no avail.

Answer 1

The Electro_Spec.Masters.MasterPage class is defined in both projects.

Remove the Electro_Spec.Masters.MasterPage from one of the two projects or change the namespace for one of the two MasterPage classes.