实体模型问题：无法为一个特定表创建模型
在创建实体模型时，我收到以下错误。
Added the connection string to Web.Config.
Successfully registered the assembly 'System.Data.Entity, Version=3.5.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' in Web.Config.
ERROR: Unable to generate model because of the following exception: 'Value does not fall within the expected range.'.
Loading metadata from database took 00:00:02.1203632.
Generating model took 00:00:00.8390920.
Writing out the EDMX file took 00:00:00.
所有表都已创建，但 BC_States 表未创建。我不明白为什么。
While creating the entity model I am getting the following error .
Added the connection string to Web.Config.
Successfully registered the assembly 'System.Data.Entity, Version=3.5.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' in Web.Config.
ERROR: Unable to generate model because of the following exception: 'Value does not fall within the expected range.'.
Loading metadata from database took 00:00:02.1203632.
Generating model took 00:00:00.8390920.
Writing out the EDMX file took 00:00:00.
All the tables are getting created but the BC_States table is not getting created.I can't understand why.
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我刚刚在调查类似的问题。事实证明，实体框架在 Visual Studio 中的
Error List窗口的Messages部分中输出了额外的错误信息。正如您所看到的，它比
Output窗口中出现的一般错误有用得多。这对于帮助我解决问题至关重要。I've just been investigating a similar issue. It turns out that Entity Framework outputs additional error information in the
Messagessection of theError Listwindow in Visual Studio.As you can see it's much more useful than the generic error that appears in the
Outputwindow. This was crucial in helping me to solve my problem.该问题不可读，但我在 Ado.Net 实体数据模型未正确更新 中发现了类似的问题。
对于我来说（我有同样的问题），问题是因为其中一张表上没有设置主键。
The question is not readable but I found the similar question at Ado.Net Entity Data Model Not Updating Correctly.
As for me (I had the same problem) the issue was because of there was no primary key set on one of the tables.