Hi
I've just started to use dataobjects.net framework, and can't run my first project.

I have database (MS SQL 2008) with 2 tables:

Blogs
BlogId (int, pk)
Name (varchar)

Posts
PostId (int, pk)
Title (varchar)
Content (varchar)
BlogId (int, fk, references Blogs.BlogId)

And data model with 2 classes:

    [HierarchyRoot]
    class Blog : Entity
    {
        [Field, Key]
        public int BlogId { get; private set; }
 
        [Field]
        public string Name { get; set; }
 
        [Field]
        public EntitySet<Post> Posts { get; set; }
    }
 
    [HierarchyRoot]
    class Post : Entity
    {
        [Field, Key]
        public int PostId { get; private set; }
 
        [Field]
        public string Title { get; set; }
 
        [Field]
        public string Content { get; set; }
 
        [Field]
        public Blog Blog { get; set; }
    }

In App.config file I have Default domain with 100% correct connection string:
<domain name="Default" upgradeMode="Validate" provider="sqlserver" connectionString="Data Source=localhost\SQLEXPRESS;Initial Catalog=TestEF;Integrated Security=True;">

In Program.cs file I load configuration and try to build domain

1.             var config = DomainConfiguration.Load("Default");
2.             var domain = Domain.Build(config);

but get exception on Domain.Build().

Access is denied: 'Xtensive.Orm.Internals.EntitySetItem`2[DBTest_DO.Model.Blog,DBTest_DO.Model.Post]'.

I tried to google it, or to find something like this here, in questions, but found nothing.
Thanks in advance!

UPD: Exception stack trace:

    System.TypeLoadException was unhandled
    Message=Access is denied: 'Xtensive.Orm.Internals.EntitySetItem2[DBTest_DO.Model.Blog,DBTest_DO.Model.Post]'</span>.
    Source=mscorlib
    TypeName=<span style="color:#666">""</span>
    StackTrace:
    at System.Reflection.Emit.TypeBuilder.TermCreateClass(RuntimeModule module, Int32 tk, ObjectHandleOnStack type)
    at System.Reflection.Emit.TypeBuilder.CreateTypeNoLock()
    at System.Reflection.Emit.TypeBuilder.CreateType()
    at Xtensive.Reflection.TypeHelper.CreateInheritedDummyType(String typeName, Type inheritFrom, <span style="color:#a535ae">Boolean</span> implementProtectedConstructorAccessor)
    at Xtensive.Orm.Building.Builders.ModelBuilder.&lt;BuildAuxiliaryTypes><span style="color:#21439c">b__1e</span>(String _underlyingTypeName, Type _genericInstanceType)
    at Xtensive.Collections.ThreadSafeDictionary2.GetValueT
    at Xtensive.Orm.Building.Builders.ModelBuilder.BuildAssociations()
    at Xtensive.Orm.Building.Builders.ModelBuilder.BuildModel()
    at Xtensive.Orm.Building.Builders.ModelBuilder.Run()
    at Xtensive.Orm.Building.Builders.ModelBuilder.Run(BuildingContext context)
    at Xtensive.Orm.Building.Builders.DomainBuilder.BuildModel()
    at Xtensive.Orm.Building.Builders.DomainBuilder.Run()
    at Xtensive.Orm.Building.Builders.DomainBuilder.Run(DomainBuilderConfiguration builderConfiguration)
    at Xtensive.Core.DelegateBindExtensions.<>cDisplayClass1`2.<Bind>b0()
    at Xtensive.Orm.Upgrade.UpgradingDomainBuilder.BuildSingleStageDomain()
    at Xtensive.Orm.Upgrade.UpgradingDomainBuilder.Run()
    at Xtensive.Orm.Upgrade.UpgradingDomainBuilder.Build(DomainConfiguration configuration)
    at Xtensive.Orm.Domain.Build(DomainConfiguration configuration)
    at DBTest_DO.Program.Main(String[] args) in c:usersesindocumentsvisual studio 2010ProjectsDBTest_DODBTest_DOProgram.cs:line 16
    at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)
    at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
    at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean ignoreSyncCtx)
    at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
    at System.Threading.ThreadHelper.ThreadStart()
    InnerException: