Conflicting Assemblies

In Visual Studio, when compiling solutions, you may encounter the following error message:

Found conflicts between different versions of the same dependent assembly. Please set the “AutoGenerateBindingRedirects” property to true in the project file. For more information, see

Or you might see a similar version of this when trying to browse to an ASP.NET website that looks like:

WRN: Assembly binding logging is turned OFF.
To enable assembly bind failure logging, set the registry value [HKLM\Software\Microsoft\Fusion!EnableLog] (DWORD) to 1.
Note: There is some performance penalty associated with assembly bind failure logging.
To turn this feature off, remove the registry value [HKLM\Software\Microsoft\Fusion!EnableLog].

To see exactly the path and the assemblies that are causing the problem, you’ll need to turn on logging for the .NET binding process. The information above in the error message is not sufficient to enable this though. Here’s the full information needed in order to see the assembly binding (from Stackoverflow):

DWORD ForceLog set value to 1
DWORD LogFailures set value to 1
DWORD LogResourceBinds set value to 1
String LogPath set value to folder for logs (e.g. C:\FusionLog\)

Make sure you have that trailing backslash in the log path.

Then, restart your application or build and inspect the details in the log file or the output from ASP.Net!