tree bc819ee00a5a77cb60f82e46c5073ab94978ae20
parent 36d0fa20a1b9fbf5b31546be1ef8da09327e8d19
author iamqizhao <toqizhao@gmail.com> 1455045407 -0800
committer iamqizhao <toqizhao@gmail.com> 1455045407 -0800

Improve an error message