+if [ ! -d "$AIRSHIP_TREASUREMAP" ]; then
+ echo "ERROR: Missing AIRSHIP_TREASUREMAP directory [$AIRSHIP_TREASUREMAP]."
+ exit -1
+fi
+
+if [ ! -d "$AIRSHIP_TEMPLATES" ]; then
+ echo "ERROR: Missing AIRSHIP_TEMPLATES directory [$AIRSHIP_TEMPLATES]."
+ exit -1
+fi