catkin build fails in ROS Noetic

[Akashleena]

I am using ROS Noetic move_base for navigation of a quadcopter in gazebo. I wanted to use the srl_global_planner. I git cloned the srl_global _planner and also the spencer_messages package into my src. But my catkin build fails with this error Could not find a package configuration file provided by "spencer_nav_msgs"
with any of the following names:

spencer_nav_msgsConfig.cmake
spencer_nav_msgs-config.cmake

I checked the github issues https://githubmemory.com/repo/srl-freiburg/srl_rhcf_planner/issues/4 but even this does not work.

Can you please help me?