EF Core 3.x installation doesn't work

[Leon99]

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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Document Details

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• ID: 263f21d6-6edc-7582-e0e2-fa1c9670bcc0
• Version Independent ID: b3dd8c84-18b1-f98d-64f1-7897d1482692
• Content: EF Core tools reference (.NET CLI) - EF Core
• Content Source: entity-framework/core/miscellaneous/cli/dotnet.md
• Product: entity-framework
• Technology: entity-framework-core
• GitHub Login: @bricelam
• Microsoft Alias: bricelam

[smitpatel]

It is a bug in the product as tracked at dotnet/efcore#18977

[FrankSilano]

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.