Error when upgrading to WebAPI 2.1 XmlDocumentationProvider does not implement interface member GetDocumentation
Solution 1
I got the same problem when getting Microsoft.AspNet.WebApi.
At Nuget Package Manager Console write this:
Update-Package -ProjectName 'YourProjectNameGoesHere' -Reinstall
This will update all your packages and it will solve your problem.I hope it helps
Solution 2
You can fix this issue by running the following two commands in the Package Manager Console
Install-Package Microsoft.AspNet.WebApi.HelpPage
This will install the required HelpPage components which are missing. You can then run an update on all NuGet Packages in your project in order to verify that all packages are up to date.
Update-Package -ProjectName 'YourProject' -Reinstall
(Remember to replace YourProject with the name of your actual project)
Update: If you continue to receive errors after building and running, you may need to update the Razor references in your Web.Config file to look like this
<sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
<section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
<section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
</sectionGroup>
Solution 3
I got the same error. This is how fixed it.
Add these two methods to the ~\Areas\HelpPage\XmlDocumentationProvider.cs
class
public virtual string GetDocumentation(HttpControllerDescriptor controllerDescriptor)
{
return "";
}
public virtual string GetResponseDocumentation(HttpActionDescriptor actionDescriptor)
{
return "";
}
Obviously, I wouldn't use this solution with real-world Enterprise applications since I don't know if this breaks anything important. I would only do this if you're running a test project or something. (although it looks like only some kind of Documentation is the only thing which is affected)
Solution 4
Even after I run Update-Package -ProjectName 'YourProjectNameGoesHere' -Reinstall
, still got the same problem.
run PM> install-package Microsoft.AspNet.WebApi.HelpPage
, problem solved
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Comments
-
Null Reference over 1 year
I'm following the tutorial here:
http://www.asp.net/web-api/overview/releases/whats-new-in-aspnet-web-api-21#download
I created an MVC Web Api project in Visual Studio 2012 (.NET Framework 4.5), and ran this command in my NuGet Package Manager Console Install-Package Microsoft.AspNet.WebApi
When I tried to build my project, I get this error:
'CommonServices.Areas.HelpPage.XmlDocumentationProvider' does not implement interface member 'System.Web.Http.Description.IDocumentationProvider.GetDocumentation(System.Web.Http.Controllers.HttpControllerDescriptor)' c:\users\administrator\documents\visual studio 2012\Projects\CommonServices\CommonServices\Areas\HelpPage\XmlDocumentationProvider.cs 'CommonServices.Areas.HelpPage.XmlDocumentationProvider' does not implement interface member 'System.Web.Http.Description.IDocumentationProvider.GetResponseDocumentation(System.Web.Http.Controllers.HttpActionDescriptor)' c:\users\administrator\documents\visual studio 2012\Projects\CommonServices\CommonServices\Areas\HelpPage\XmlDocumentationProvider.cs
Is there something I missed?
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Venkata Krishna about 9 years@MichaelKniskern - glad to help
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codezoo over 8 yearsThe answer marked as the solution did not resolve this for me. The Install-Package HelpPage in this answer resolved it.
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sensei over 8 yearsInstalling HelpPage helped here as well.
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siva about 7 yearsThis Answer resolved my problem not the answer marked as solution.