From 4c7123909903712a40dc464aae68d0aef12f98ad Mon Sep 17 00:00:00 2001
From: Atsushi Sakai <asakai.amsl+github@gmail.com>
Date: Sun, 18 Feb 2018 10:32:24 -0800
Subject: [PATCH] add error handling

---
 PathPlanning/ClosedLoopRRTStar/closed_loop_rrt_star_car.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/PathPlanning/ClosedLoopRRTStar/closed_loop_rrt_star_car.py b/PathPlanning/ClosedLoopRRTStar/closed_loop_rrt_star_car.py
index 751577cb..581deacc 100644
--- a/PathPlanning/ClosedLoopRRTStar/closed_loop_rrt_star_car.py
+++ b/PathPlanning/ClosedLoopRRTStar/closed_loop_rrt_star_car.py
@@ -107,6 +107,8 @@ class RRT():
 
         best_time = float("inf")
 
+        fx = None
+
         # pure pursuit tracking
         for ind in path_indexs:
             path = self.gen_final_course(ind)