diff --git a/julius_ros/scripts/run_julius.sh b/julius_ros/scripts/run_julius.sh
index 33badb396..9c83afad9 100755
--- a/julius_ros/scripts/run_julius.sh
+++ b/julius_ros/scripts/run_julius.sh
@@ -14,8 +14,24 @@ for OPT in "$@"; do
 done
 
 if [ "$ROS_DISTRO" = "debian" ]; then
+    print_error() {
+	local message="$1"
+	echo -e "\e[1m\e[31m${message}\e[0m" >&2
+    }
     if ! test -e $(rospack find julius)/conf -a -e $(rospack find julius)/model; then
-	echo "julius need install grammer and dictation kit, run 'rosrun julius download_julius_data.sh'"
+	print_error "[${BASH_SOURCE[0]}] ----"
+	print_error "[${BASH_SOURCE[0]}] ----"
+	print_error "[${BASH_SOURCE[0]}] ---- julius need install grammer and dictation kit, run 'sudo PATH=\$PATH LD_LIBRARY_PATH=\$LD_LIBRARY_PATH ROS_PACKAGE_PATH=\$ROS_PACKAGE_PATH  $(rospack find julius)/download_julius_data.sh'"
+	print_error "[${BASH_SOURCE[0]}] ----"
+	print_error "[${BASH_SOURCE[0]}] ----"
+	exit 1
+    fi
+    if ! command -v julius >/dev/null 2>&1; then
+	print_error "[${BASH_SOURCE[0]}] ----"
+	print_error "[${BASH_SOURCE[0]}] ----"
+	print_error "[${BASH_SOURCE[0]}] ---- executable file 'julius' not found, run 'sudo apt install julius'"
+	print_error "[${BASH_SOURCE[0]}] ----"
+	print_error "[${BASH_SOURCE[0]}] ----"
 	exit 1
     fi
     exec julius $ARGS