Error Microsoft.Web.Infrastructure, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35

Question

I have a small web application. Which was working fine until I added two genericHandler in my application.

I have made the following changes for the http handl

Answer 1

Was facing the same issue and unfortunately nothing here was working. Finally, I came across this link: https://blogs.msdn.microsoft.com/jjameson/2009/11/18/the-copy-local-bug-in-visual-studio/

Turns out the solution is sort of dumb: set copy-local for the microsoft.web.infrastructure dll to False, then set it back to True.

By the way, I think what is happening is that there are two versions of the microsoft.web.infrastructure dll, one that is pre-installed in the GAC, and another one that is now a nuget package. I think one is masking the other, hence causing issues. In my particular case, on my build server, I need it to be copied over to a folder (this folder is then zipped and sent off to deployment). I guess the system had a copy locally and just thought "nah, it'll be fine"

Answer 2

Why not copy Microsoft.Web.Infrastructure.dll file manually to the server BIN folder. This works for. My project is VS2010 Website.

This file can be located:

C:\Program Files (x86)\Microsoft ASP.NET\ASP.NET MVC 4\Packages\Microsoft.Web.Infrastructure.1.0.0.0\lib\net40

Just copy and paste it in the BIN folder.

You probably need to include this in the web.config if you don't have it already

<compilation debug="true" targetFramework="4.0">
  <assemblies>
    <add assembly="Microsoft.Web.Infrastructure, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
  </assemblies>
</compilation>

Reference: http://thedeveloperblog.com/

Answer 3

Update-Package -reinstall Microsoft.Web.Infrastructure didn't work for me, as I kept receiving errors that it was already installed.

I had to navigate to the Microsoft.Web.Infrastructure.1.0.0.0 folder in the packages folder and manually delete that folder.

After doing this, running Install-Package Microsoft.Web.Infrastructure installed it.

Note: CopyLocal was automatically set to true.

Answer 4

I have a files only website. Added MVC 5 to webforms application (targeting net45). I had to modify the packages.config

package id="Microsoft.AspNet.Mvc" version="5.2.3" targetFramework="net45"

to

package id="Microsoft.AspNet.Mvc" version="5.2.3" targetFramework="net45" developmentDependency="true"

in order for it to startup on local box in debug mode (previously had the top described error). Running VS 2017 on Windows 7...opened through File > Open > Web Site > File (chose root directory outside of IIS).

Answer 5

I had the same problem after upgrading a bunch of NuGet packages.
I have tried all kinds of deleting, cleaning, resintalling described here and beyong to no avail. The references did not have Microsoft.Web.Infrastructure despite the NuGet manager showed it was installed.

The problem was solved by replacing:

  <package id="Microsoft.Web.Infrastructure" version="1.0.0.0" targetFramework="net45" />

with

  <package id="Microsoft.Web.Infrastructure" version="1.0.0.0" targetFramework="net46" />

in packages.config. The culprit is apparently "net45".

Answer 6

It appears that Microsoft.Web.Infrastructure.dll is not being installed in the GAC, even if .net (4.0 or 4.5 or other) are installed successfully on Windows Server. On localhost (typically Windows client), it seems like it is being in the GAC when the tools/platform (Visual Studio etc.) are installed.

As one possible fix, please try the following:

1. Run the following command in the Package Manager Console. (If you are using Visual Studio, this can be reached via menu options "Tools --> Library Package Manager --> Package Manager Console:)

   PM> Install-Package Microsoft.Web.Infrastructure
   

   You will see the following messages if it is successfully installed.

   Successfully installed 'Microsoft.Web.Infrastructure 1.0.0.0'.
   Successfully added 'Microsoft.Web.Infrastructure 1.0.0.0' to Web.
   

2. You will notice that Microsoft.Web.Infrastructure.dll has now been added as a Reference (can be seen in the references folder of your project in in Solution Explorer)

3. If you look at the properties of this reference you will notice that "Copy Local" has been set to "True" by default.

4. Now when you "Publish " your project, Microsoft.Web.Infrastructure.dll will be deployed.