尝试添加新的Oracle连接时,实体数据模型向导会异常 [英] Entity Data Model Wizard Gets Exception When Trying to Add a New Oracle Connection
问题描述
我正在尝试从oracle数据库生成/更新edmx模型,我需要创建一个与该oracle数据库的新连接.当我单击测试连接"时,它成功,但是当我单击确定"时,出现以下错误:
I'm trying to generate/update an edmx model from an oracle database and I need to create a new connection to that oracle database. When I click "Test Connection" it succeeds but when I click "OK" it gives the following error:
由于对象的当前状态,操作无效
Operation is not valid due to the current state of the object
添加新连接以更新edmx模型时出现
VS 2017错误
VS 2017 error when adding new connection to update edmx model
推荐答案
在全新安装VS2017之后,我遇到了完全相同的问题.
I had the exact same issue after a brand new installation of VS2017.
- 安装了VS2017(对于我来说,是企业版).
- 以前,ODT在社区版中不起作用,但是Oracle可能已解决该问题.
- Installed VS2017 (enterprise edition, in my case).
- Previously ODT didn't work in the community edition, but Oracle might have fixed that.
已安装用于Visual Studio 2017的Oracle开发人员工具
- ODT破坏了VS2017,我不得不进行修复",从而解决了VS2017甚至无法启动的问题.这是开始解决您描述的问题的地方.
重新安装了 ODAC 12.2c第1版和Oracle Developer Tools为了 Visual Studio(12.2.0.1.0)
Reinstalled ODAC 12.2c Release 1 and Oracle Developer Tools for Visual Studio (12.2.0.1.0)
- 它先前是为VS2015安装的.
现在,一切都按预期进行,我可以刷新我的EF6模型.
Now, everything works as expected and I'm able to e.g. refresh my EF6 models.
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