Sign Up

Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.

Have an account? Sign In

Have an account? Sign In Now

Sign In

Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.

Sign Up Here

Forgot Password?

Don't have account, Sign Up Here

Forgot Password

Lost your password? Please enter your email address. You will receive a link and will create a new password via email.

Have an account? Sign In Now

You must login to ask a question.

Forgot Password?

Need An Account, Sign Up Here

Please briefly explain why you feel this question should be reported.

Please briefly explain why you feel this answer should be reported.

Please briefly explain why you feel this user should be reported.

Sign InSign Up

The Archive Base

The Archive Base Logo The Archive Base Logo

The Archive Base Navigation

  • SEARCH
  • Home
  • About Us
  • Blog
  • Contact Us
Search
Ask A Question

Mobile menu

Close
Ask a Question
  • Home
  • Add group
  • Groups page
  • Feed
  • User Profile
  • Communities
  • Questions
    • New Questions
    • Trending Questions
    • Must read Questions
    • Hot Questions
  • Polls
  • Tags
  • Badges
  • Buy Points
  • Users
  • Help
  • Buy Theme
  • SEARCH
Home/ Questions/Q 9164017
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Editorial Team
Asked: June 17, 20262026-06-17T14:34:49+00:00 2026-06-17T14:34:49+00:00

I am trying to upgrade my MVC 3 project to MVC 4 and while

  • 0

I am trying to upgrade my MVC 3 project to MVC 4 and while I install EF5, the PostSharp do not let compile the project. I get error below. Spend several hours trying to resolve the problem without any luck. The PostSharp refers to entityframework, version=4.3.1.0 but there is no such version in my project, I have left only 5.0 version. Even searching all project files using external text editor do not give any search result for “4.3.1.0”. So I have no idea where PostSharp picks it up. Any suggestions how to solve the problem?

Error   2   Unhandled exception (2.1.7.28, 32 bit, CLR 4.0, Release): PostSharp.Sdk.CodeModel.AssemblyLoadException: Cannot find assembly 'entityframework, version=4.3.1.0, culture=neutral, publickeytoken=b77a5c561934e089'. [Version mismatch]
============ PostSharp Assembly Loading Log ===================
LOG: Finding the assembly with binding identity 'entityframework, version=4.3.1.0, culture=neutral, publickeytoken=b77a5c561934e089'.
LOG: Probing location 'C:\Users\Administrator\Projects\PC\trunk\packages\EntityFramework.5.0.0\lib\net45\EntityFramework.dll' because this file was explicitly added to the search path.
LOG: File 'C:\Users\Administrator\Projects\PC\trunk\packages\EntityFramework.5.0.0\lib\net45\EntityFramework.dll' has identity 'entityframework, version=5.0.0.0, culture=neutral, publickeytoken=b77a5c561934e089, processorarchitecture=msil'.
LOG: File 'C:\Users\Administrator\Projects\PC\trunk\packages\EntityFramework.5.0.0\lib\net45\EntityFramework.dll' does not match the reference.
LOG: Probing location 'C:\Users\Administrator\Projects\PC\trunk\packages\PostSharp.2.1.7.28\tools\Release\EntityFramework.exe' because this directory was explicitly added to the search path.
LOG: The file 'C:\Users\Administrator\Projects\PC\trunk\packages\PostSharp.2.1.7.28\tools\Release\EntityFramework.exe' could not be found.
LOG: Probing location 'C:\Users\Administrator\Projects\PC\trunk\packages\PostSharp.2.1.7.28\tools\Release\EntityFramework.dll' because this directory was explicitly added to the search path.
LOG: The file 'C:\Users\Administrator\Projects\PC\trunk\packages\PostSharp.2.1.7.28\tools\Release\EntityFramework.dll' could not be found.
LOG: Probing location 'C:\Users\Administrator\Projects\PC\trunk\PC\EntityFramework.exe' because this directory was explicitly added to the search path.
LOG: The file 'C:\Users\Administrator\Projects\PC\trunk\PC\EntityFramework.exe' could not be found.
LOG: Probing location 'C:\Users\Administrator\Projects\PC\trunk\PC\EntityFramework.dll' because this directory was explicitly added to the search path.
LOG: The file 'C:\Users\Administrator\Projects\PC\trunk\PC\EntityFramework.dll' could not be found.
LOG: Probing location 'C:\Users\Administrator\Projects\PC\trunk\PC\bin\EntityFramework.exe' because this directory was explicitly added to the search path.
LOG: The file 'C:\Users\Administrator\Projects\PC\trunk\PC\bin\EntityFramework.exe' could not be found.
LOG: Probing location 'C:\Users\Administrator\Projects\PC\trunk\PC\bin\EntityFramework.dll' because this directory was explicitly added to the search path.
LOG: File 'C:\Users\Administrator\Projects\PC\trunk\PC\bin\EntityFramework.dll' has identity 'entityframework, version=5.0.0.0, culture=neutral, publickeytoken=b77a5c561934e089, processorarchitecture=msil'.
LOG: File 'C:\Users\Administrator\Projects\PC\trunk\PC\bin\EntityFramework.dll' does not match the reference.
LOG: Probing location 'C:\Users\Administrator\Projects\PC\trunk\PC\obj\Debug\EntityFramework.exe' because this directory was explicitly added to the search path.
LOG: The file 'C:\Users\Administrator\Projects\PC\trunk\PC\obj\Debug\EntityFramework.exe' could not be found.
LOG: Probing location 'C:\Users\Administrator\Projects\PC\trunk\PC\obj\Debug\EntityFramework.dll' because this directory was explicitly added to the search path.
LOG: The file 'C:\Users\Administrator\Projects\PC\trunk\PC\obj\Debug\EntityFramework.dll' could not be found.
LOG: Probing location 'C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.5\EntityFramework.exe' because this directory was explicitly added to the search path.
LOG: The file 'C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.5\EntityFramework.exe' could not be found.
LOG: Probing location 'C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.5\EntityFramework.dll' because this directory was explicitly added to the search path.
LOG: The file 'C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.5\EntityFramework.dll' could not be found.
LOG: Probing location 'C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.5\Facades\EntityFramework.exe' because this directory was explicitly added to the search path.
LOG: The file 'C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.5\Facades\EntityFramework.exe' could not be found.
LOG: Probing location 'C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.5\Facades\EntityFramework.dll' because this directory was explicitly added to the search path.
LOG: The file 'C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.5\Facades\EntityFramework.dll' could not be found.
LOG: Looking in GAC for EntityFramework, Version=4.3.1.0, Culture=neutral, PublicKeyToken=b77a5c561934e089, processorArchitecture=x86.
LOG: Looking in GAC for EntityFramework, Version=4.3.1.0, Culture=neutral, PublicKeyToken=b77a5c561934e089, processorArchitecture=msil.
LOG: Looking in GAC for EntityFramework, Version=4.3.1.0, Culture=neutral, PublicKeyToken=b77a5c561934e089.
LOG: The assembly 'EntityFramework_28' was not found.
===============================================================
   at PostSharp.Sdk.CodeModel.Domain.GetAssembly(IAssemblyName assemblyName, BindingOptions bindingOptions)
   at PostSharp.Sdk.CodeModel.AssemblyRefDeclaration.GetAssemblyEnvelope()
   at PostSharp.Sdk.CodeModel.TypeRefDeclaration.GetTypeDefinition(BindingOptions bindingOptions)
   at PostSharp.Sdk.CodeModel.TypeRefDeclaration.GetTypeDefinition()
   at ^I3av2ouCqwmI.^4+F3cylo(INamedType _0, INamedType _1, BindingOptions _2)
   at PostSharp.Sdk.CodeModel.TypeRefDeclaration.^A9yFoe2uB3TC(ITypeSignature _0, BindingOptions _1)
   at ^I3av2ouCqwmI.^4+F3cylo(IMethodSignature _0, IMethodSignature _1, BindingOptions _2)
   at PostSharp.Sdk.CodeModel.Binding.MethodSignatureComparer.Equals(IMethodSignature x, IMethodSignature y)
   at System.Collections.Generic.Dictionary`2.FindEntry(TKey key)
   at System.Collections.Generic.Dictionary`2.TryGetValue(TKey key, TValue& value)
   at ^/vWxD3eYDOIx.^wdkNIZCy[??0](^/fRRnkiTvxqu _0, ??0 _1, ^EyL1LQX01Ck8 _2, ^0RC0kpHqS6Uy _3, Dictionary`2 _4, Int32 _5, Int32 _6)
   at PostSharp.Sdk.Binary.ModuleWriter.SetMemberSignatureIndex(MemberRefDeclaration _0, ^EyL1LQX01Ck8 _1, ^0RC0kpHqS6Uy _2)
   at PostSharp.Sdk.Binary.ModuleWriter.WriteMemberRef(MemberRefDeclaration _0, MetadataToken _1)
   at PostSharp.Sdk.Binary.ModuleWriter.GetMappedDeclarationToken(MetadataDeclaration _0)
   at PostSharp.Sdk.Binary.ModuleWriter.SetMappedMetadataToken(MetadataDeclaration _0, UInt32* _1)
   at ^R00FfLNj7vE0.^rk33N/hO(OpCodeNumber _0, MetadataDeclaration _1)
   at ^R00FfLNj7vE0.EmitInstructionMethod(OpCodeNumber _0, IMethod _1)
   at PostSharp.Sdk.CodeModel.Instruction.Write(BaseInstructionWriter writer, InstructionPrefixes allowedPrefixes)
   at ^zpGNRK5nUM9z.^x98p/iJs13L+(InstructionReader _0)
   at PostSharp.Sdk.CodeModel.MethodBodyDeclaration.^uPrQJ6gs(InstructionBlock _0, IMethodBodyVisitor[] _1, MethodBodyVisitLevel _2, InstructionAction _3, InstructionReader _4, InstructionBlockExceptionHandlingKind _5)
   at PostSharp.Sdk.CodeModel.MethodBodyDeclaration.^uPrQJ6gs(InstructionBlock _0, IMethodBodyVisitor[] _1, MethodBodyVisitLevel _2, InstructionAction _3, InstructionReader _4, InstructionBlockExceptionHandlingKind _5)
   at ^zpGNRK5nUM9z.^e2BtLyuT(^Kh85h0nXrulm& _0, Int32& _1)
   at ^zpGNRK5nUM9z.^SkiT(^ceSOybcTEumb _0)
   at PostSharp.Sdk.Binary.ModuleWriter.WriteMethodBodies(^ceSOybcTEumb _0, UInt32 _1)
   at ^Up6wxUIUnN6a.^VfvrABjR()
   at ^Up6wxUIUnN6a.^SkiT()
   at ^cyC/TYSlPGB/.^wvPm(^RtksFin57NJ8 _0, ^8gP93Xsl\+Imn _1)
   at PostSharp.Sdk.Extensibility.Tasks.CompileTask.Execute()
   at PostSharp.Sdk.Extensibility.Project.ExecutePhase(String phase)
   at PostSharp.Sdk.Extensibility.Project.Execute()
   at PostSharp.Hosting.PostSharpObject.ExecuteProjects()
   at PostSharp.Hosting.PostSharpObject.InvokeProject(ProjectInvocation projectInvocation)  C:\Users\Administrator\Projects\PC\trunk\PC\POSTSHARP   PC
  • 1 1 Answer
  • 0 Views
  • 0 Followers
  • 0
Share
  • Facebook
  • Report

Leave an answer
Cancel reply

You must login to add an answer.

Forgot Password?

Need An Account, Sign Up Here

1 Answer

  • Voted
  • Oldest
  • Recent
  • Random
  1. Editorial Team
    Editorial Team
    2026-06-17T14:34:51+00:00Added an answer on June 17, 2026 at 2:34 pm

    I think you may have some assembly binding policies in app.config, which makes the CLR look for v5.0 instead of v4.3.1. PostSharp does not support binding policies in app.config, but only system-wide ones (like the ones redirecting .NET 1.0 to 2.0).

    Binding policies in app.config are supported in PostSharp 3, but at the time of writing this feature has not been documented, and PostSharp 3 is still CTP.

    The only solution for the moment is to make sure that all components and references of your projects have references (are linked) to v5.0, so no binding policy is necessary.

    • 0
    • Reply
    • Share
      Share
      • Share on Facebook
      • Share on Twitter
      • Share on LinkedIn
      • Share on WhatsApp
      • Report

Sidebar

Related Questions

I'm trying to upgrade my ASP.NET MVC 1 website to version 2. While doing
I have a custom login-actionfilter where that I'm trying to upgrade to mvc 2
I am trying to upgrade a Grails 1.0.3 project to 1.3.7 and am having
We are trying to upgrade an mvc 2.0 application to mvc 4.0. This is
Context: I am trying to upgrade a Grails project from 1.0.3 to 1.3.7 and
Trying to upgrade a solution from 2008 to 2010. And I suddenly get a
I'm trying to upgrade from ASP.NET MVC3 RC to RTM? I can't get past
I'm trying to upgrade my project and so I've come to transactions. This is
When trying to upgrade MAMP pear the following error is raised: Notice: unserialize(): Error
Im trying to upgrade an old project made using django 1.2 / django-page-cms 1.2

Explore

  • Home
  • Add group
  • Groups page
  • Communities
  • Questions
    • New Questions
    • Trending Questions
    • Must read Questions
    • Hot Questions
  • Polls
  • Tags
  • Badges
  • Users
  • Help
  • SEARCH

Footer

© 2021 The Archive Base. All Rights Reserved
With Love by The Archive Base

Insert/edit link

Enter the destination URL

Or link to existing content

    No search term specified. Showing recent items. Search or use up and down arrow keys to select an item.