the very first step, dotnet tool install --global dotnet-ef, fails with
error NU1202: Package dotnet-ef 3.0.1 is not compatible with netcoreapp3.0 (.NETCoreApp,Version=v3.0) / any. Package dotnet-ef 3.0.1 supports: netcoreapp2.1 (.NETCoreApp,Version=v2.1)
The tool package could not be restored.
If the tool requires .NET Core 2.1, it should be documented.
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It is a bug in the product as tracked at https://github.com/aspnet/EntityFrameworkCore/issues/18977
As a workaround downgrade your project from 3.0.1 EF Core packages to 3.0.0. Then install the EF 3.0.0 tools from the CLI if youdidn't already do it from the package manager. Then restart your project. This is the only thing that has worked for me so far. Good luck.
Most helpful comment
As a workaround downgrade your project from 3.0.1 EF Core packages to 3.0.0. Then install the EF 3.0.0 tools from the CLI if youdidn't already do it from the package manager. Then restart your project. This is the only thing that has worked for me so far. Good luck.