diff --git a/tools/build_and_run.sh b/tools/build_and_run.sh
index da0cb68fb32129d4fbad0f8f91a50e3fa02ccd20..41e0e4685c833b769b628bd07dec2946e7ecf369 100755
--- a/tools/build_and_run.sh
+++ b/tools/build_and_run.sh
@@ -1,4 +1,4 @@
-#!/bin/bash -x
+#!/bin/bash
 #
 # Copyright (C) [2020] Futurewei Technologies, Inc. All rights reverved.
 #
@@ -16,6 +16,11 @@
 
 set -e
 
+if [ -z "$MAPLE_ROOT" ]; then
+  echo "Please \"source build/envsetup.sh\" to setup environment"
+  exit 1
+fi
+
 today=$(date +%Y-%m-%d-%H_%M)
 
 cd $MAPLE_ROOT
diff --git a/tools/setup_tools.sh b/tools/setup_tools.sh
index 5dd6d2744e5b1acb6c627fb0744138544bb8976a..34a9b7943b526f31abed1500cd356d7e7e83079d 100755
--- a/tools/setup_tools.sh
+++ b/tools/setup_tools.sh
@@ -17,7 +17,8 @@
 set -e
 
 if [ -z "$MAPLE_ROOT" ]; then
-  export MAPLE_ROOT=$(pwd)/..
+  echo "Please \"source build/envsetup.sh\" to setup environment"
+  exit 1
 fi
 echo MAPLE_ROOT: $MAPLE_ROOT