Azure function V3 could not load file or assembly Microsoft.Extensions.DependencyInjection.Abstractions, Version= with EF core 5.0-rc1

The Microsoft.Azure.Functions.Extensions depends on .net standard 2.0.

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While the Entity Framework Core 5.0 RC1 will not run on .Net standard 2.0 platforms, it requires .net standard 2.1. So it could not find the Microsoft.Azure.Functions.Extensions.

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For more details, you could refer to this article.

If you are using .NET core 3.1 or below that. Downgrade the NuGet packages of Microsoft.Extensions.DependencyInjection and Microsoft.Extensions.DependencyInjection.Abstractions to 3.1.11.