diff --git a/Engine/Controllers/LCFunctionController.cs b/Engine/Controllers/LCFunctionController.cs
index dec02b2..00f84a2 100644
--- a/Engine/Controllers/LCFunctionController.cs
+++ b/Engine/Controllers/LCFunctionController.cs
@@ -47,8 +47,8 @@ namespace LeanCloud.Engine {
                     object result = await LCEngine.Invoke(mi, req);
                     if (result != null) {
                         return new Dictionary<string, object> {
-                        { "result", result }
-                    };
+                            { "result", result }
+                        };
                     }
                 }
                 return default;
diff --git a/Engine/LCEngine.cs b/Engine/LCEngine.cs
index f29b83d..595a777 100644
--- a/Engine/LCEngine.cs
+++ b/Engine/LCEngine.cs
@@ -213,7 +213,14 @@ namespace LeanCloud.Engine {
                 }
                 return mi.Invoke(null, ps);
             } catch (TargetInvocationException e) {
-                throw e.InnerException;
+                Exception ex = e.InnerException;
+                if (ex is LCException lcEx) {
+                    throw new Exception(JsonConvert.SerializeObject(new Dictionary<string, object> {
+                        { "code", lcEx.Code },
+                        { "message", lcEx.Message }
+                    }));
+                }
+                throw ex;
             }
         }