Enable-Migrations does not work. HRESULT: 0x80070057 (E_INVALIDARG) : The Official Microsoft ASP.NET Forums

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mtthwbrnd

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Enable-Migrations does not work. HRESULT: 0x80070057 (E_INVALIDARG)

Feb 18, 2013 04:07 AM|LINK

1. Start Visual Studio Express 2012 for Web

2. File -> New Web Site -> Asp.Net Dynamic Data Enitities For Web Site

(creates a new web site project, in my case WebSite9)

3. Tools->Library Package Manager->Manage NuGet Packages For Solution...

4. Select EntityFrameWork and install for WebSite9.

5. Create class file PeopleDb.cs in App_Code folder containing:

using System;
using System.Collections.Generic;
using System.Data.Entity;
using System.Linq;
using System.Web;


    public class Person
    {
        public int PersonId { get; set; }
    }

    public class PeopleDb : DbContext
    {
        public DbSet<Person> people { get; set; }
    }

6. Change the global.asax file as advised all over the web to contain:

DefaultModel.RegisterContext(() =>
        {
            return ((System.Data.Entity.Infrastructure.IObjectContextAdapter)new PeopleDb()).ObjectContext;
        }, new ContextConfiguration() { ScaffoldAllTables = false });

7. Try to enable migrations by typing Enable-Migrations into the Package Manager Console window.

It always give the same error:

PM> Enable-Migrations
System.ArgumentException: The parameter is incorrect. (Exception from HRESULT: 0x80070057 (E_INVALIDARG))

Server stack trace:
at EnvDTE.Properties.Item(Object index)
at System.Runtime.Remoting.Messaging.StackBuilderSink._PrivateProcessMessage(IntPtr md, Object[] args, Object server, Object[]& outArgs)
at System.Runtime.Remoting.Messaging.StackBuilderSink.SyncProcessMessage(IMessage msg)

Exception rethrown at [0]:
at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg)
at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)
at EnvDTE.Properties.Item(Object index)
at System.Data.Entity.Migrations.Extensions.ProjectExtensions.GetPropertyValue[T](Project project, String propertyName)
at System.Data.Entity.Migrations.MigrationsDomainCommand.GetFacade(String configurationTypeName)
at System.Data.Entity.Migrations.EnableMigrationsCommand.FindContextToEnable(String contextTypeName)
at System.Data.Entity.Migrations.EnableMigrationsCommand.<>c__DisplayClass2.<.ctor>b__0()
at System.Data.Entity.Migrations.MigrationsDomainCommand.Execute(Action command)
The parameter is incorrect. (Exception from HRESULT: 0x80070057 (E_INVALIDARG))

I have tried adding -ContextTypeName PeopleDb, I have tried adding -StartUpProjectName WebSite9.

Which Parameter is incorrect? What is the correct Parameter? Does anybody know what exactly I need to type into the PM Console in order to make the Enable-Migrations functionality work?

This is such a frustrating thing. Such a tiny, tiny thing. Am I doing something wrong? Perhaps Enable-Migrations is not meant to be used in the"For Web" version of Visual Studio. I am lost in a sea of .Net related acronyms and forums and documentation desperately trying to get the Enable-Migrations command to work.

19/02/2013 Update:

Thanks for the responses, the links were useful to explain a few things. I have no idea how the issue got solved, but suddenly the Enable-Migrations command works for me even though I am doing exactly the same set of things as before. The only difference is that I have installed the Azure SDK. If anybody else has this issue then I would say to install the 2012 Azure SDK http://www.windowsazure.com/en-us/downloads/ and try again.