I worked my way through this compilation error and thought I would share how I solved it.
Here is the error Visual Studio reported when I tried to publish my ASP.NET web site:
Error 75 The type 'Components_ListProductCap1' exists in both 'c:\Users\duong_000\AppData\Local\Temp\Temporary ASP.NET Files\dientuthaithang.com.vn\a4812a8e\2f0b8d24\App_Web_0x45a4fg.dll' and 'c:\Users\duong_000\AppData\Local\Temp\Temporary ASP.NET Files\dientuthaithang.com.vn\a4812a8e\2f0b8d24\App_Web_xfif450t.dll' F:\dienthuthaithang.com.vn\code web\dientuthaithang.com.vn\dientuthaithang.com.vn\Components\ListProduct.ascx 64
need the help and problem solving were lying still thanks