diff --git a/README.md b/README.md
index 527513d..5499b99 100644
--- a/README.md
+++ b/README.md
@@ -46,3 +46,5 @@ rosrun air_moveit_config add_sphere
 ```
 roslaunch air_moveit_config air_mtc.launch
 ```
+## Tips
+The workspace may not be created when you clone the ADS repository.