hi,
after completing the master page, i tried to compile the solution and i get these erros and warnings :

Avertissement 1 The type 'OneAfrik' in 'c:\Windows\Microsoft.NET\Framework\v2.0.50727\Tem porary ASP.NET Files\oneafrikui\c2b33a49\41291c69\App_Web_8z2bhf8 l.0.cs' conflicts with the imported namespace 'OneAfrik' in 'c:\Windows\Microsoft.NET\Framework\v2.0.50727\Tem porary ASP.NET Files\oneafrikui\c2b33a49\41291c69\assembly\dl3\06 57d2bb\40e86992_7634ca01\OneAfrik.BLL.DLL'. Using the type defined in 'c:\Windows\Microsoft.NET\Framework\v2.0.50727\Tem porary ASP.NET Files\oneafrikui\c2b33a49\41291c69\App_Web_8z2bhf8 l.0.cs'.
C:\Users\georges\Documents\Visual Studio 2008\Projects\OneAfrikSolution\OneAfrikUI\OneAfrik .master.cs 13 7 http://localhost/OneAfrikUI/

Erreur 2 The type name 'BLL' does not exist in the type 'OneAfrik' C:\Users\georges\Documents\Visual Studio 2008\Projects\OneAfrikSolution\OneAfrikUI\OneAfrik .master.cs 13 16 http://localhost/OneAfrikUI/

i don't have any idea of the cause.
i changed my solution names to :
OneAfrik.DAL
OneAfrik.BLL
OneAfrikUI
etc...

thank you
Georges

I have the same problem

It's ok. I found the problem. The problem is, we are not allowed to give the same names to a namespace and a class in that namespace. For example it's impossible a "Line" class under "Line" namespace. My problem was I named the masterpage the same as my namespace name.