This error probably occurs when you modify your tables and their relationships with other tables in your data model. I've seen this error several times today when i update my entities model. As it's frustrating to solve it. I'll take a note here.
Solution: open edmx by xml editor, remove all items related to removed table. Save it and then update the model.
Solution: open edmx by xml editor, remove all items related to removed table. Save it and then update the model.
当在数据模型中修改表及其与其他表的关系时,可能会遇到此错误。已通过打开 XML 编辑器,移除与已删除表相关的所有项,保存文件并更新模型来解决。

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