![entity framework - dotnet ef command no longer works after upgrading to Visual Studio 16.3.0 - Stack Overflow entity framework - dotnet ef command no longer works after upgrading to Visual Studio 16.3.0 - Stack Overflow](https://i.stack.imgur.com/pzJAd.png)
entity framework - dotnet ef command no longer works after upgrading to Visual Studio 16.3.0 - 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/FjGnu.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/1876454/56600645-16780980-65f1-11e9-84c0-25c0cc451fc3.png)
dotnet ef` does not work after running `dotnet tool install -g dotnet-ef` · Issue #15448 · dotnet/efcore · GitHub
Dotnet tool ef, showing error when installed in the same version · Issue #9813 · dotnet/sdk · GitHub
![Unable to start project - "dotnet ef database update" does not work · Issue #40048 · MicrosoftDocs/azure-docs · GitHub Unable to start project - "dotnet ef database update" does not work · Issue #40048 · MicrosoftDocs/azure-docs · GitHub](https://user-images.githubusercontent.com/18199852/68076594-9d6a2380-fd84-11e9-9020-d908be8dd627.png)
Unable to start project - "dotnet ef database update" does not work · Issue #40048 · MicrosoftDocs/azure-docs · GitHub
![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)