C# IdentityServer4升级到.NET Core 2.0时出现问题（AddConfigurationStore、AddOperationalStore）

我从.NET Core 1.1升级到.NET Core 2.0，并遇到以下问题（我还升级了一些库以支持.NET Core 2.0）

CS1929“ConfigurationStoreOptions”不包含“UseNpgsql”的定义，最佳扩展方法重载“NPGSQLDBContextOptions Extensions.UseNpgsql（DBContextOptions Builder，string，Action）”需要“DBContextOptions Builder”类型的接收器

Startup.cs

        services.AddIdentityServer()
            .AddSigningCredential(Certificate.Get())
            .AddAspNetIdentity<User>()
            .AddConfigurationStore(builder =>
                builder.UseNpgsql(connectionString, options =>
                    options.MigrationsAssembly(migrationsAssembly)))
            .AddOperationalStore(builder =>
                builder.UseNpgsql(connectionString, options =>
                    options.MigrationsAssembly(migrationsAssembly)));

---

注意：我添加了“使用Microsoft.EntityFrameworkCore；”

我自己也遇到了同样的问题。对IdentityServer4.EntityFramework github的拖网调查揭示了一个使用ConfigureDBContext属性的示例：

解决方案：

        services.AddIdentityServer()
            .AddSigningCredential(Certificate.Get())
            .AddAspNetIdentity<User>()
            .AddConfigurationStore(options =>
            {
                options.ConfigureDbContext = builder =>
                    builder.UseNpgsql(connectionString,
                        sql => sql.MigrationsAssembly(migrationsAssembly));
            })
            // this adds the operational data from DB (codes, tokens, consents)
            .AddOperationalStore(options =>
            {
                options.ConfigureDbContext = builder =>
                    builder.UseNpgsql(connectionString,
                        sql => sql.MigrationsAssembly(migrationsAssembly));

                // this enables automatic token cleanup. this is optional.
                options.EnableTokenCleanup = true;
                options.TokenCleanupInterval = 30;
            });

services.AddIdentityServer（）
.AddSigningCredential（证书.Get（））
.AddAsNetIdentity（）
.AddConfigurationStore（选项=>
{
options.ConfigureDbContext=builder=>
builder.UseNpgsql（连接字符串，
sql=>sql.migrationassembly（migrationassembly））；
})
//这将添加来自DB的操作数据（代码、令牌、同意）
.addStore（选项=>
{
options.ConfigureDbContext=builder=>
builder.UseNpgsql（连接字符串，
sql=>sql.migrationassembly（migrationassembly））；
//这将启用自动令牌清理。这是可选的。
options.EnableTokenCleanup=true；
options.TokenCleanupInterval=30；
});

2.0.0 RC1刚刚发布，用于针对NetStandard2.0的nuget

        services.AddIdentityServer()
            .AddSigningCredential(Certificate.Get())
            .AddAspNetIdentity<User>()
            .AddConfigurationStore(options =>
            {
                options.ConfigureDbContext = builder =>
                    builder.UseNpgsql(connectionString,
                        sql => sql.MigrationsAssembly(migrationsAssembly));
            })
            // this adds the operational data from DB (codes, tokens, consents)
            .AddOperationalStore(options =>
            {
                options.ConfigureDbContext = builder =>
                    builder.UseNpgsql(connectionString,
                        sql => sql.MigrationsAssembly(migrationsAssembly));

                // this enables automatic token cleanup. this is optional.
                options.EnableTokenCleanup = true;
                options.TokenCleanupInterval = 30;
            });