将IdentityServer4从2.2升级到3.1错误

我将IdentityServer4从2.2更新到3.1，无法运行pass app.UseEndpoints。这是例外

无法加载一个或多个请求的类型。\ r \ n无法从程序集“ IdentityModel，版本= 4.1.1.0，文化=中性，PublicKeyToken = e7877f4675df049f”中加载类型“ IdentityModel.Client.DiscoveryResponse”

    public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
    {
        if (_environment.IsDevelopment())
        {
            app.UseDeveloperExceptionPage();
            app.UseDatabaseErrorPage();
        }
        try
        {
            using (var serviceScope = app.ApplicationServices.GetRequiredService<IServiceScopeFactory>().CreateScope())
            {
                SeedData.EnsureSeedData(serviceScope, Configuration);
            }
        }
        catch (Exception ex)
        {
            Debug.WriteLine(ex.Message);
        }

        //app.UseIdentityServer();
        //app.UseCors(builder => builder.AllowAnyOrigin().AllowAnyHeader().AllowAnyMethod().AllowCredentials());
        //app.UseStaticFiles();
        //app.UseMvcWithDefaultRoute();

        app.UseStaticFiles();

        app.UseRouting();
        app.UseCors();
        app.UseIdentityServer();
        // app.UseAuthorization();
        app.UseEndpoints(endpoints =>
        {
            endpoints.MapDefaultControllerRoute();
        });
    }

我进行了搜索，找到了以下链接。https://github.com/IdentityModel/IdentityModel/issues/245但是，我仍然无法找出问题所在。