i'm new in ROS and during my installation of tum simulator in indigo i've faced this error

[issouker97]

/usr/include/gazebo-7/gazebo/common/Event.hh:627:64: error: ‘class gazebo::event::EventTPrivate<void(const gazebo::common::UpdateInfo&)>’ has no member named ‘connections’
auto const &iter = this->myDataPtr->connections.rbegin();
^
/usr/include/gazebo-7/gazebo/common/Event.hh:630:35: error: ‘class gazebo::event::EventTPrivate<void(const gazebo::common::UpdateInfo&)>’ has no member named ‘connections’
this->myDataPtr->connections[index].reset(new EventConnection(true,
^
make[2]: *** [tum-simulator-indigo/cvg_sim_gazebo_plugins/CMakeFiles/hector_gazebo_quadrotor_state_controller.dir/src/quadrotor_state_controller.cpp.o] Error 1
make[1]: *** [tum-simulator-indigo/cvg_sim_gazebo_plugins/CMakeFiles/hector_gazebo_quadrotor_state_controller.dir/all] Error 2
make[2]: *** [tum-simulator-indigo/cvg_sim_gazebo_plugins/CMakeFiles/hector_gazebo_quadrotor_simple_controller.dir/src/quadrotor_simple_controller.cpp.o] Error 1
make[1]: *** [tum-simulator-indigo/cvg_sim_gazebo_plugins/CMakeFiles/hector_gazebo_quadrotor_simple_controller.dir/all] Error 2
make: *** [all] Error 2
Invoking "make -j4 -l4" failed
please help me to get rid from this error , i would be grateful for your help thank you in advance

[issouker97]

hi guys ,
just to clearfy everything , i followed this website to install the tum_simulator https://github.com/iolyp/tum-simulator-indigo
and this error has appeared when i tap catkin_make
i'm extremely delighted to see your honorable efforts

[NikolasE]

if you have a problem with the branch of iolyp, you should first ask there or confirm that the problem also happens with this version here.

[issouker97]

@NikolasE thanks for your concern , actually i didn't understand you . could you provide me a detailed explanation for that

[issouker97]

any other suggestion guys !!