@@ -, +, @@ 
 and qt 5.14 (issue #2681)
---
 plugins/CessnaGUIPlugin.hh  | 3 +++
 plugins/LookAtDemoPlugin.hh | 3 +++
 2 files changed, 6 insertions(+)
--- a/plugins/CessnaGUIPlugin.hh	
+++ a/plugins/CessnaGUIPlugin.hh	
@@ -23,7 +23,10 @@ 
 
 #include <gazebo/common/Plugin.hh>
 #include <gazebo/gui/GuiPlugin.hh>
+// moc parsing error of tbb headers
+#ifndef Q_MOC_RUN
 #include <gazebo/transport/transport.hh>
+#endif
 
 namespace gazebo
 {
--- a/plugins/LookAtDemoPlugin.hh	
+++ a/plugins/LookAtDemoPlugin.hh	
@@ -21,7 +21,10 @@ 
 
 #include <gazebo/common/Plugin.hh>
 #include <gazebo/gui/GuiPlugin.hh>
+// moc parsing error of tbb headers
+#ifndef Q_MOC_RUN
 #include <gazebo/transport/transport.hh>
+#endif
 
 namespace gazebo
 {
--