*** Assembly Binder Log Entry (2013/12/10 @ 10:19:31) *** The operation failed. Bind result: hr = 0x80131040. No description available. Assembly manager loaded from: C:\Windows\Microsoft.NET\Framework\v4.0.30319\clr.dll Running under executable C:\Program Files (x86)\IIS Express\iisexpress.exe --- A detailed error log follows. === Pre-bind state information === LOG: DisplayName = DotNetOpenAuth.Core, Version=4.0.0.0, Culture=neutral, PublicKeyToken=2780ccd10d57b246 (Fully-specified) LOG: Appbase = file:///c:/users/spencer.shao/documents/visual studio 2012/Projects/DXWebApplication3/DXWebApplication3/ LOG: Initial PrivatePath = c:\users\spencer.shao\documents\visual studio 2012\Projects\DXWebApplication3\DXWebApplication3\bin LOG: Dynamic Base = C:\Users\spencer.shao\AppData\Local\Temp\Temporary ASP.NET Files\root\070423a0 LOG: Cache Base = C:\Users\spencer.shao\AppData\Local\Temp\Temporary ASP.NET Files\root\070423a0 LOG: AppName = 50241c09 Calling assembly : Microsoft.Web.WebPages.OAuth, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35. === LOG: This bind starts in default load context. LOG: Using application configuration file: c:\users\spencer.shao\documents\visual studio 2012\Projects\DXWebApplication3\DXWebApplication3\web.config LOG: Using host configuration file: C:\Users\spencer.shao\Documents\IISExpress\config\aspnet.config LOG: Using machine configuration file from C:\Windows\Microsoft.NET\Framework\v4.0.30319\config\machine.config. LOG: Post-policy reference: DotNetOpenAuth.Core, Version=4.0.0.0, Culture=neutral, PublicKeyToken=2780ccd10d57b246 LOG: GAC Lookup was unsuccessful. LOG: Attempting download of new URL file:///C:/Users/spencer.shao/AppData/Local/Temp/Temporary ASP.NET Files/root/070423a0/50241c09/DotNetOpenAuth.Core.DLL. LOG: Attempting download of new URL file:///C:/Users/spencer.shao/AppData/Local/Temp/Temporary ASP.NET Files/root/070423a0/50241c09/DotNetOpenAuth.Core/DotNetOpenAuth.Core.DLL. LOG: Attempting download of new URL file:///c:/users/spencer.shao/documents/visual studio 2012/Projects/DXWebApplication3/DXWebApplication3/bin/DotNetOpenAuth.Core.DLL. LOG: Assembly download was successful. Attempting setup of file: c:\users\spencer.shao\documents\visual studio 2012\Projects\DXWebApplication3\DXWebApplication3\bin\DotNetOpenAuth.Core.dll LOG: Entering download cache setup phase. LOG: Assembly Name is: DotNetOpenAuth.Core, Version=4.1.0.0, Culture=neutral, PublicKeyToken=2780ccd10d57b246 WRN: Comparing the assembly name resulted in the mismatch: Minor Version ERR: The assembly reference did not match the assembly definition found. ERR: Setup failed with hr = 0x80131040. ERR: Failed to complete setup of assembly (hr = 0x80131040). Probing terminated.