Could not load file or assembly Exception from HRESULT: 0x80131040

Question

I created my first MVC 4 project and it works perfectly on local server. But when I publish it on to local folder and upload the folder contents to hosting server. I try to run it and I get this error:

Could not load file or assembly 'DotNetOpenAuth.Core, Version=4.0.0.0, Culture=neutral, PublicKeyToken=2780ccd10d57b246' or one of its dependencies. The system cannot find the file specified. Can any one help me please?

Web.config:

<assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">   <dependentAssembly>     <assemblyIdentity name="DotNetOpenAuth.Core" publicKeyToken="2780ccd10d57b246" />     <bindingRedirect oldVersion="1.0.0.0-4.0.0.0" newVersion="4.1.0.0" />   </dependentAssembly>   <dependentAssembly>     <assemblyIdentity name="DotNetOpenAuth.AspNet" publicKeyToken="2780ccd10d57b246" />     <bindingRedirect oldVersion="1.0.0.0-4.0.0.0" newVersion="4.1.0.0" />   </dependentAssembly>   <dependentAssembly>     <assemblyIdentity name="System.Web.Helpers" publicKeyToken="31bf3856ad364e35" />     <bindingRedirect oldVersion="1.0.0.0-2.0.0.0" newVersion="2.0.0.0" />   </dependentAssembly>   <dependentAssembly>     <assemblyIdentity name="System.Web.Mvc" publicKeyToken="31bf3856ad364e35" />     <bindingRedirect oldVersion="1.0.0.0-4.0.0.0" newVersion="4.0.0.0" />   </dependentAssembly>   <dependentAssembly>     <assemblyIdentity name="System.Web.WebPages" publicKeyToken="31bf3856ad364e35" />     <bindingRedirect oldVersion="1.0.0.0-2.0.0.0" newVersion="2.0.0.0" />   </dependentAssembly>   <dependentAssembly>     <assemblyIdentity name="WebGrease" publicKeyToken="31bf3856ad364e35" />     <bindingRedirect oldVersion="1.0.0.0-1.3.0.0" newVersion="1.3.0.0" />   </dependentAssembly> </assemblyBinding> 

P.S The same project in Web Forms works on hosting server.

Answer 1

Finally found the answer!! Go to References --> right cilck on dll file that causing the problem --> select the properties --> check the version --> match the version in properties to web config

<dependentAssembly>     <assemblyIdentity name="YourDllFile" publicKeyToken="2780ccd10d57b246"               culture="neutral" />     <bindingRedirect oldVersion="0.0.0.0-YourDllFileVersion" newVersion="YourDllFileVersion" />   </dependentAssembly> 

Answer 2

What worked for me immediately was:

• I located bin folder (picture below shows).

• moved all dll in other folder for safety.

• then rebuild ed the project.

• after solved the issue, deleted old dll files.