diff --git a/YD_YiLu/Controllers/DeviceSyncController.cs b/YD_YiLu/Controllers/DeviceSyncController.cs
index 2b1bddc..e99c023 100644
--- a/YD_YiLu/Controllers/DeviceSyncController.cs
+++ b/YD_YiLu/Controllers/DeviceSyncController.cs
@@ -166,6 +166,18 @@ namespace YD_YiLu.Api.Controllers
         [Route("/device/sync/grade/my_record")]
         public async Task<object> MyRecord([FromBody] DeviceSyncMyRecordRequestDto dto)
         {
+            /*
+             * fail: Microsoft.EntityFrameworkCore.Query[10100]
+      An exception occurred while iterating over the results of a query for context type 'YD_YiLu.Api.Context.SmartSportsContext'.
+      System.InvalidCastException: Unable to cast object of type 'System.Int32' to type 'System.Double'.
+         at Microsoft.Data.SqlClient.SqlBuffer.get_Double()
+         at lambda_method804(Closure , QueryContext , DbDataReader , ResultContext , SingleQueryResultCoordinator )
+         at Microsoft.EntityFrameworkCore.Query.Internal.SingleQueryingEnumerable`1.AsyncEnumerator.MoveNextAsync()
+      System.InvalidCastException: Unable to cast object of type 'System.Int32' to type 'System.Double'.
+         at Microsoft.Data.SqlClient.SqlBuffer.get_Double()
+         at lambda_method804(Closure , QueryContext , DbDataReader , ResultContext , SingleQueryResultCoordinator )
+         at Microsoft.EntityFrameworkCore.Query.Internal.SingleQueryingEnumerable`1.AsyncEnumerator.MoveNextAsync()
+             */
             var res = await _deviceSyncService.MyRecordAsync(dto);
             return res;
         }