update PADDLE_ENFORCE message

8 years ago · 57a22db3fa
parent 34beec0f7a
commit 57a22db3fa
1 changed files with 1 additions and 1 deletions
--- 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!= */