服务.AddDatabaseDeveloperPageExceptionFilter();错误代码:CS1061

Question

代码：

public void ConfigureServices(IServiceCollection services)
{
services.AddDbContext<SchoolContext>(options => 
options.UseSqlServer(Configuration.GetConnectionString("DefaultConnection")));
services.AddDatabaseDeveloperPageExceptionFilter();
services.AddControllersWithViews();
}

错误消息：

Error   CS1061  'IServiceCollection' does not contain a definition for 'AddDatabaseDeveloperPageExceptionFilter' 
and no accessible extension method 'AddDatabaseDeveloperPageExceptionFilter' accepting a first argument of type 
'IServiceCollection' could be found (are you missing a using directive or an assembly reference?)   
AspCore_DB  C:Startup.cs   30  Active

这个代码是在MS指南中正式介绍的，我只是遵循了。我正在开发MS Visual Studio 2019 v16.8.2。

Answer 1

经过一些研究，我发现它在Microsoft.AspNetCore.Diagnostics.EntityFrameworkCore库中。

Answer 2

伙计们，您可以从-tools->安装此软件包Microsoft.AspNetCore.Diagnostics.EntityFrameworkCore 7.0.10；Nuget包管理器->为解决方案管理Nuget包，这对我有效。