Entity Framework error - "Type argument 'Namespace...EntityName' does not satisfy the 'Class' constraint for the type 'TEntity'."

I have the following two tables defined...

CREATE TABLE [LogLevel] (
  [Id] int primary key
  ,[Name] nvarchar(50) not null
  ,[Enabled] bit not null default (0)
)
GO

CREATE TABLE [Log] (
  [Id] bigint identity(1,1) primary key
  ,[LogLevel] int not null fo开发者_如何学运维reign key references [LogLevel]([Id])
  ,[On] datetimeoffset not null default (SYSDATETIMEOFFSET())
  ,[Summary] nvarchar(100)
  ,[Details] nvarchar(MAX)
)

After creating a fresh endity model, I add the two tables above. When I try to build I get the following errors...

Okay, hopefully someone else can post a better answer, but apparently the fit has something to do with the table [LogLevel]'s name or the table [Log]'s name... in either case, renaming them to [DiagnosticLog] and [DiagnosticLogLevel] resolved the issue at hand.