diff --git a/framework/src/Volo.Abp.Http.Client/Volo/Abp/Http/Client/ClientProxying/ClientProxyBase.cs b/framework/src/Volo.Abp.Http.Client/Volo/Abp/Http/Client/ClientProxying/ClientProxyBase.cs
index b547ca256c..e45176393b 100644
--- a/framework/src/Volo.Abp.Http.Client/Volo/Abp/Http/Client/ClientProxying/ClientProxyBase.cs
+++ b/framework/src/Volo.Abp.Http.Client/Volo/Abp/Http/Client/ClientProxying/ClientProxyBase.cs
@@ -52,6 +52,10 @@ namespace Volo.Abp.Http.Client.ClientProxying
         {
             var methodUniqueName = $"{typeof(TService).FullName}.{methodName}.{string.Join("-", arguments.Select(x => x.GetType().FullName))}";
             var action = ClientProxyApiDescriptionFinder.FindAction(methodUniqueName);
+            if (action == null)
+            {
+                throw new AbpException($"The API description of the {typeof(TService).FullName}.{methodName} method was not found!");
+            }
             return new ClientProxyRequestContext(
                 action,
                 action.Parameters
diff --git a/framework/src/Volo.Abp.Http.Client/Volo/Abp/Http/Client/ClientProxying/ClientProxyUrlBuilder.cs b/framework/src/Volo.Abp.Http.Client/Volo/Abp/Http/Client/ClientProxying/ClientProxyUrlBuilder.cs
index 464ca3f26d..e6a9b8ff71 100644
--- a/framework/src/Volo.Abp.Http.Client/Volo/Abp/Http/Client/ClientProxying/ClientProxyUrlBuilder.cs
+++ b/framework/src/Volo.Abp.Http.Client/Volo/Abp/Http/Client/ClientProxying/ClientProxyUrlBuilder.cs
@@ -5,7 +5,6 @@ using System.Globalization;
 using System.Linq;
 using System.Text;
 using JetBrains.Annotations;
-using Microsoft.Extensions.DependencyInjection;
 using Volo.Abp.DependencyInjection;
 using Volo.Abp.Http.Client.Proxying;
 using Volo.Abp.Http.Modeling;
@@ -16,13 +15,6 @@ namespace Volo.Abp.Http.Client.ClientProxying
 {
     public class ClientProxyUrlBuilder : ITransientDependency
     {
-        protected IServiceScopeFactory ServiceProviderFactory { get; }
-
-        public ClientProxyUrlBuilder(IServiceScopeFactory serviceProviderFactory)
-        {
-            ServiceProviderFactory = serviceProviderFactory;
-        }
-
         public string GenerateUrlWithParameters(ActionApiDescriptionModel action, IReadOnlyDictionary<string, object> methodArguments, ApiVersionInfo apiVersion)
         {
             // The ASP.NET Core route value provider and query string value provider: