diff -ura gz-gui-gz-gui7_7.2.2.orig/src/plugins/topic_viewer/TopicViewer.cc gz-gui-gz-gui7_7.2.2.new/src/plugins/topic_viewer/TopicViewer.cc
--- gz-gui-gz-gui7_7.2.2.orig/src/plugins/topic_viewer/TopicViewer.cc	2024-05-24 21:54:03.000000000 +0800
+++ gz-gui-gz-gui7_7.2.2.new/src/plugins/topic_viewer/TopicViewer.cc	2025-07-07 19:31:01.655022875 +0800
@@ -252,12 +252,12 @@
     auto messageType = msgField->message_type();
 
     if (messageType)
-      this->AddField(msgItem, msgField->name(), messageType->name());
+      this->AddField(msgItem, std::string(msgField->name()), std::string(messageType->name()));
 
     else
     {
-      auto msgFieldItem = this->FactoryItem(msgField->name(),
-                                            msgField->type_name());
+      auto msgFieldItem = this->FactoryItem(std::string(msgField->name()),
+                                            std::string(msgField->type_name()));
       msgItem->appendRow(msgFieldItem);
 
       this->SetItemPath(msgFieldItem);