ASP.Net MVC-5 / EF-6 sln在Visual Studio 2015中工作，在VS 2017中失败

Question

I have an MVC-5/EF-6 ASP.Net project/sln that builds without error and runs correctly in Visual Studio 2015. When I build the solution in Visual Studio 2017, I get the following error message:

Error 175: The ADO.NET provider with invariant name 'Oracle.ManagedDataAccess.Client' is either not registered in the machine or application config file, or could not be loaded. See the inner exception for details. Nissan D:\\home\\Nissan\\Website\\Nissan\\EnitityModel\\Nissan.edmx

Also, the project fails to run, and the edmx viewer cannot open. From NuGet, the project uses (among other things): Package Installed Version Latest Version EntityFramework v6.2.0-beta1 v6.2.0-beta1 Oracle.ManagedDataAccess v12.1.24160719 v12.2.2.1100 Oracle.ManagedDataAccess.EntityFramework v12.1.2400 v12.2.2.1100

All NuGet packages are up-to-date except the 2 Oracle.ManagedDataAccess packages. If I update them, project still builds and runs using VS 2015, but I can no longer view the edmx file ("Cannot load Nissan.edmx: Exception has been thrown..."). Any idea what is keeping my project from building in VS 2017?

Answer 1

我通过安装适用于Visual Studio 2017的Oracle开发人员工具解决了此问题。

Answer 2

您需要安装适用于Visual Studio 2017的Oracle Developer Tools。在此处下载链接： http : //www.oracle.com/technetwork/topics/dotnet/downloads/odacmsidownloadvs2017-3806459.html