add missing import

b2f4f388 · Johannes Mey · 7f8e478d · b2f4f388
Commit b2f4f388 authored 3 years ago by Johannes Mey
--- a/src/dummy_pick_place.cpp
+++ b/src/dummy_pick_place.cpp
@@ -14,6 +14,7 @@

 #include <google/protobuf/text_format.h>
 #include <random>
+#include <optional>

 #include "connector.pb.h"