Failed to create migration

[koeltp]

项目结果如上图所示。
ef core模型在一个类库中，当我Main方法调用的名称为BuildHost方法时，我在包管理器中执行
Add-Migration initcreated时，报如下错误：

而当我在Main方法中将BuildHost的名字改为CreateHostBuilder时，就可以成功了。

是因为有这样的约定，还是是一个bug。

Steps to reproduce

Further technical details

EF Core version:3.1.3
Database provider: Pomelo.EntityFrameworkCore.MySql
Target framework: .NET Core 3.1
Operating system:win10 1903
IDE: Visual Studio 2019 16.5.4

谢谢

[ajcvickers]

Machine translation:

Failed to create migration

The project results are shown in the figure above.
The ef core model is in a class library, and when my Main method calls the BuildHost method, I execute it in the package manager
When Add-Migration initcreated, the following error was reported:

And when I changed the name BuildHost to CreateHost Builder in the Main approach, It worked.

It's because there's such a convention, or is it a bug.

[ajcvickers]

@koeltp The method must be called CreateHostBuilder for it to be found by EF. See also https://docs.microsoft.com/ef/core/miscellaneous/cli/dbcontext-creation

[koeltp]

thank you very much.