一种可能的解决方法是在Startup.cs中将OpenIdDict的配置属性设置为默认值。以下是示例代码：

public void ConfigureServices(IServiceCollection services)
{
    services.AddControllersWithViews();

    services.AddDbContext(options =>
        options.UseSqlServer(Configuration.GetConnectionString("DefaultConnection")));

    services.AddIdentity()
        .AddEntityFrameworkStores()
        .AddDefaultTokenProviders();

    services.AddAuthentication(options =>
    {
        options.DefaultScheme = OpenIddictValidationAspNetCoreDefaults.AuthenticationScheme;
        options.DefaultChallengeScheme = OpenIddictValidationAspNetCoreDefaults.AuthenticationScheme;
        options.DefaultSignInScheme = OpenIddictValidationAspNetCoreDefaults.AuthenticationScheme;
    })
    .AddJwtBearer(options =>
    {
        options.Authority = Configuration["Authentication:JwtIssuer"];
        options.TokenValidationParameters = new TokenValidationParameters
        {
            ValidateIssuer = true,
            ValidateAudience = false,
            ValidateLifetime = true,
            IssuerSigningKey = new SymmetricSecurityKey(Encoding.ASCII.GetBytes(Configuration["Authentication:JwtKey"])),
            ClockSkew = TimeSpan.Zero
        };
    });
}

public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
{
    [...]

    app.UseAuthentication();
    app.UseAuthorization();

    app.UseOpenIddict();
}

此外，还应该确保在项目文件中添加OpenIdDict的引用，如下所示：

如果问题仍然存在，请查看OpenIdDict和ASP.NET Core的文档，以获得更多的解决方案和支持。