From 4bd94636303f137fdd389b35a4b3bea15cbb0fea Mon Sep 17 00:00:00 2001
From: Chen Weihang <chenweihang@baidu.com>
Date: Thu, 14 Nov 2019 15:19:15 +0800
Subject: [PATCH] fix detail error message error, test=develop (#21170)

---
 paddle/fluid/framework/data_feed.cc | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/paddle/fluid/framework/data_feed.cc b/paddle/fluid/framework/data_feed.cc
index c4a33e0fb83..c9c663926e6 100644
--- a/paddle/fluid/framework/data_feed.cc
+++ b/paddle/fluid/framework/data_feed.cc
@@ -105,8 +105,9 @@ bool DataFeed::SetFileList(const std::vector<std::string>& files) {
 }
 
 void DataFeed::SetBatchSize(int batch_size) {
-  PADDLE_ENFORCE_GT(batch_size, 0, platform::errors::InvalidArgument(
-                                       "Batch size is illegal.", batch_size));
+  PADDLE_ENFORCE_GT(batch_size, 0,
+                    platform::errors::InvalidArgument(
+                        "Batch size %d is illegal.", batch_size));
   default_batch_size_ = batch_size;
 }
 
-- 
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