From 57a22db3fad1251a50d3d3dd2f241ad7f1949d77 Mon Sep 17 00:00:00 2001
From: fengjiayi <fengjiayi@baidu.com>
Date: Fri, 14 Jul 2017 19:43:59 +0800
Subject: [PATCH] update PADDLE_ENFORCE message

---
 paddle/framework/tensor.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/paddle/framework/tensor.h b/paddle/framework/tensor.h
index d98706e6ed8..62e0710a824 100644
--- a/paddle/framework/tensor.h
+++ b/paddle/framework/tensor.h
@@ -48,7 +48,7 @@ class Tensor {
   T* mutable_data(paddle::platform::Place place) {
     PADDLE_ENFORCE(numel_ > 0,
                    "Tensor::numel_ must be larger than zero to call "
-                   "Tensor::mutable_data.");
+                   "Tensor::mutable_data. Call Tensor::set_dim first.");
     if (holder_ == nullptr ||
         !(holder_->place() ==
           place) /* some versions of boost::variant don't have operator!= */
-- 
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