ImportError: dynamic module does not define module export function (PyInit_libqt_gui_cpp_sip)

[souravsanyal06]

When I start gazebo in gui using the below command:

roslaunch ros_gp_mpc quadrotor_empty_world.launch enable_command_feedthrough:=True

I get stuck at an error which says

Could not import "pyqt" bindings of qt_gui_cpp library - so C++ plugins will not be available:
Traceback (most recent call last):
File "/opt/ros/melodic/lib/python2.7/dist-packages/qt_gui_cpp/cpp_binding_helper.py", line 43, in
from . import libqt_gui_cpp_sip
ImportError: dynamic module does not define module export function (PyInit_libqt_gui_cpp_sip)

Any fix would be appreciated.