实体模型不加载 [英] Entity Model does not load

问题描述

每当我试图打开我的实体模型，我得到一个不是非常有帮助的错误消息，指出该操作无法完成。所以，不幸的是我没有更具体的信息。但是，我有其他的模式，打开就好了，我没有做任何显著改变的模式，不是重命名实体等。

Whenever i try to open my Entity Model, i get a not very helpful error message stating that "the operation could not be completed". So unfortunately i don't have more specific information. However, i have other models that open just fine, and i didn't make any significant changes to the model, other than renaming entities.

是否有任何已知的解决方法这种行为？我重新启动VS和我的电脑，删除并重新添加的模式，但没有任何帮助，所以它一定是什么东​​西在的.edmx，我猜。但我没有用手修改和编译没有错误或警告。 ： - /

Are there any known workarounds for this behaviour? I restarted VS and my PC, removed and added the model again but nothing helped, so it must be something in the .edmx, i guess. But i didn't modify it by hand and everything compiles without errors or warnings. :-/

推荐答案

我想我固定它...

我是用继承，如果你有一个0..1这可能会导致错误| ...上派生实体关联。它的修复通常是该协会设置为1 | ...关联，然后做继承，再改回来。

I was using inheritance, which can cause errors if you have a 0..1|... association on a derived entity. The fix for it is usually to set the association to a 1|... association, then do the inheritance, then change it back.

然而，在我的情况下，不知怎的把它弄坏了，但后来我离开了协会在0..1 | ...先，然后应用继承和得到错误后，将其设置为1 | ...，保存，然后设置它回来了。现在，它的工作原理。 :)

However in my case that somehow broke it, but then i left the associations at 0..1|... first, then applied inheritance and after getting the error set it to 1|... , saved and then set it back again. Now it works. :)

我真的不能等待下一个EF： - /

I really can't wait for the next EF :-/

更新：

我又有了错误，这个时候，我固定它通过在EF设计部分打开.edmx文件，并删除重复InheritanceConnectors。

I had the error again, this time i fixed it by opening the .edmx file and removing duplicate InheritanceConnectors in the EF Designer section.

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