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-rw-r--r--src/gui/MachinaCanvas.cpp6
1 files changed, 5 insertions, 1 deletions
diff --git a/src/gui/MachinaCanvas.cpp b/src/gui/MachinaCanvas.cpp
index 7a26ef0..627eb09 100644
--- a/src/gui/MachinaCanvas.cpp
+++ b/src/gui/MachinaCanvas.cpp
@@ -133,7 +133,11 @@ MachinaCanvas::on_new_object(SPtr<client::ClientObject> object)
object->get(uris.machina_head_id).get_int32());
if (!tail || !head) {
- std::cerr << "Invalid arc" << std::endl;
+ std::cerr << "Invalid arc "
+ << object->get(uris.machina_tail_id).get_int32()
+ << " => "
+ << object->get(uris.machina_head_id).get_int32()
+ << std::endl;
return;
}