fix compilation

facontidavide · facontidavide · commit d0d04cfc61c1 · 2023-02-20T15:10:20.000+01:00
diff --git a/include/behaviortree_cpp/basic_types.h b/include/behaviortree_cpp/basic_types.h
@@ -12,6 +12,7 @@
 #include <memory>
 #include <string_view>
 #include <variant>
+#include <optional>
 
 #include "behaviortree_cpp/utils/safe_any.hpp"
 #include "behaviortree_cpp/exceptions.h"
