Failed to load file or assembly "System.Web.Http.WebHost ..." problem record

MVC deployment to IIS problem logging:

Failed to load file or assembly "System.Web.Http.WebHost, version=4.0.0.0, culture=neutral, publickeytoken=31bf3856ad364e35" or one of its dependencies. The system could not find the specified file.

If you do not use WEBAPI, you can delete the WEBAPI configuration. The operation is as follows:

NuGet Package Management-"Package management console, run the following command:
Update-package Microsoft.aspnet.webapi-reinstall

failed to load file or assembly Microsoft.Web.Infrastructure, version=1.0.0.0, culture=neutral, PUBLICKEYTOKEN=31BF3856AD

There are no microsoft.web.infrastructure.dll files.

Solution Method:

, the first: in the published project file in the bin file directory, add Microsoft.web.infrastructure.dll file.

The second type: Add Microsoft.web.infrastructure.dll under System32.

The second is not practical, recommend the first solution.