Resolve the “Entity Framework tools version '3.1.9' is older than that of the runtime '5.0.0' in Visual Studio Package Manager”

.NET 5 is released recently and you can use entity framework core 5 with your projects by setting up the version 5.0.0 of the packages, Microsoft.EntityFrameworkCore, Microsoft.EntityFrameworkCore.Design, Microsoft.EntityFrameworkCore.SqlServer, Microsoft.EntityFrameworkCore.Tools if you are using SQL server as the database. However, when you execute dotnet ef commands in the package manager console in Visual Studio you might see the message “Entity Framework tools version '3.1.9' is older than that of the runtime '5.0.0' in Visual Studio Package Manager”. Let’s see how we can get it fixed.

Running EF Commands in Builds with .NET Core 3.1 in Hosted Agents

When you run builds with Entity Framework (EF) commands such as dotnet ef migrations script with .NET Core 2.2 it would work without any issue. However, if you upgrade your projects to use .NET Core 3.1 your build may fail with issue below., when executing dotnet ef migrations script, to generate a script out of your EF migrations.
error NETSDK1045: The current .NET SDK does not support targeting .NET Core 3.1. Either target .NET Core 2.2 or lower, or use a version of the .NET SDK that supports .NET Core 3.1.