From 5948215bb7bdb2692c6f8a8b8add59ebf905f3b1 Mon Sep 17 00:00:00 2001
From: "Cris.Wei" <18547249+XW-HKU@users.noreply.github.com>
Date: Thu, 4 Feb 2021 11:59:09 +0800
Subject: [PATCH] Update README.md

---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 5ee289e..eea457f 100644
--- a/README.md
+++ b/README.md
@@ -28,7 +28,7 @@ To know more about the details, please refer to our related paper:)
 
 ## 1. Prerequisites
 ### 1.1 **Ubuntu** and **ROS**
-Ubuntu >= 18.04.
+==Ubuntu >= 18.04 (Ubuntu 16.04 is not supported)==
 
 ROS    >= Melodic. [ROS Installation](http://wiki.ros.org/ROS/Installation)