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visual studio - When publishing my ASP.NET Core MVC App, the Entity Framework Migrations option shows an error - Stack Overflow
![EntityFramework.Core.Tools' nuget package installation error: "The process cannot access the file ef.exe because it is being used by another process" - Microsoft Q&A EntityFramework.Core.Tools' nuget package installation error: "The process cannot access the file ef.exe because it is being used by another process" - Microsoft Q&A](https://i.stack.imgur.com/po2rP.png)
EntityFramework.Core.Tools' nuget package installation error: "The process cannot access the file ef.exe because it is being used by another process" - Microsoft Q&A
![dotnet ef` does not work after running `dotnet tool install -g dotnet-ef` · Issue #15448 · dotnet/efcore · GitHub dotnet ef` does not work after running `dotnet tool install -g dotnet-ef` · Issue #15448 · dotnet/efcore · GitHub](https://user-images.githubusercontent.com/2696087/56530562-69759200-6507-11e9-83f4-94fa252513b7.png)