diff --git a/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/ExceptionHandling/DefaultExceptionToErrorInfoConverter.cs b/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/ExceptionHandling/DefaultExceptionToErrorInfoConverter.cs
index 88aa4749ad..fa48d0d43c 100644
--- a/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/ExceptionHandling/DefaultExceptionToErrorInfoConverter.cs
+++ b/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/ExceptionHandling/DefaultExceptionToErrorInfoConverter.cs
@@ -66,9 +66,8 @@ namespace Volo.Abp.AspNetCore.Mvc.ExceptionHandling
             
             if (exception is IUserFriendlyException)
             {
-                var userFriendlyException = exception as IUserFriendlyException;
                 errorInfo.Message = exception.Message;
-                errorInfo.Details = userFriendlyException.Details;
+                errorInfo.Details = (exception as IHasErrorDetails)?.Details;
             }
 
             if (exception is IHasValidationErrors)
@@ -195,12 +194,13 @@ namespace Volo.Abp.AspNetCore.Mvc.ExceptionHandling
             detailBuilder.AppendLine(exception.GetType().Name + ": " + exception.Message);
 
             //Additional info for UserFriendlyException
-            if (exception is IUserFriendlyException)
+            if (exception is IUserFriendlyException && 
+                exception is IHasErrorDetails)
             {
-                var userFriendlyException = exception as IUserFriendlyException;
-                if (!string.IsNullOrEmpty(userFriendlyException.Details))
+                var details = ((IHasErrorDetails) exception).Details;
+                if (!details.IsNullOrEmpty())
                 {
-                    detailBuilder.AppendLine(userFriendlyException.Details);
+                    detailBuilder.AppendLine(details);
                 }
             }
 
diff --git a/src/Volo.Abp.UI/Volo/Abp/Ui/IUserFriendlyException.cs b/src/Volo.Abp.UI/Volo/Abp/Ui/IUserFriendlyException.cs
index 91885c1e91..8b6b1fdc8d 100644
--- a/src/Volo.Abp.UI/Volo/Abp/Ui/IUserFriendlyException.cs
+++ b/src/Volo.Abp.UI/Volo/Abp/Ui/IUserFriendlyException.cs
@@ -1,8 +1,6 @@
-using Volo.Abp.ExceptionHandling;
-
 namespace Volo.Abp.UI
 {
-    public interface IUserFriendlyException : IHasErrorDetails
+    public interface IUserFriendlyException
     {
 
     }
diff --git a/src/Volo.Abp.UI/Volo/Abp/Ui/UserFriendlyException.cs b/src/Volo.Abp.UI/Volo/Abp/Ui/UserFriendlyException.cs
index 1991fb4011..058f5cd441 100644
--- a/src/Volo.Abp.UI/Volo/Abp/Ui/UserFriendlyException.cs
+++ b/src/Volo.Abp.UI/Volo/Abp/Ui/UserFriendlyException.cs
@@ -10,7 +10,11 @@ namespace Volo.Abp.UI
     /// This exception type is directly shown to the user.
     /// </summary>
     [Serializable]
-    public class UserFriendlyException : ApplicationException, IHasLogLevel, IHasErrorCode, IUserFriendlyException
+    public class UserFriendlyException : ApplicationException, 
+        IUserFriendlyException, 
+        IHasLogLevel, 
+        IHasErrorCode, 
+        IHasErrorDetails
     {
         /// <summary>
         /// Additional information about the exception.