diff --git a/.vs/SqlSugar/v14/.suo b/.vs/SqlSugar/v14/.suo
index 761969d40..c21acf27d 100644
Binary files a/.vs/SqlSugar/v14/.suo and b/.vs/SqlSugar/v14/.suo differ
diff --git a/SqlSugar/ExpressionsToSql/ExpTool.cs b/SqlSugar/ExpressionsToSql/ExpTool.cs
index 1191fb6b3..82f375d86 100644
--- a/SqlSugar/ExpressionsToSql/ExpTool.cs
+++ b/SqlSugar/ExpressionsToSql/ExpTool.cs
@@ -41,8 +41,7 @@ namespace SqlSugar
                 case ExpressionType.MultiplyChecked:
                     return "*";
                 default:
-                     Check.ThrowNotSupportedException(string.Format(ErrorMessage.OperatorError, expressiontype.ToString()));
-                    return null;
+                    throw new NotSupportedException(string.Format(ErrorMessage.OperatorError, expressiontype.ToString()));
             }
         }
     }