Could not find a package configuration file provided by "geographic_msgs"

[amartyadash]

Getting the following error while building the workspace:

CMake Error at /opt/ros/melodic/share/catkin/cmake/catkinConfig.cmake:83 (find_package):
  Could not find a package configuration file provided by "geographic_msgs"
  with any of the following names:

    geographic_msgsConfig.cmake
    geographic_msgs-config.cmake

  Add the installation prefix of "geographic_msgs" to CMAKE_PREFIX_PATH or
  set "geographic_msgs_DIR" to a directory containing one of the above files.
  If "geographic_msgs" provides a separate development package or SDK, be
  sure it has been installed.
Call Stack (most recent call first):
 CMakeLists.txt:4 (find_package)

[amartyadash]

Here Geographic msgs is missing and it is included with ros-melodic-mavros, ros-melodic-mavros-extras.

sudo apt-get install ros-melodic-mavros ros-melodic-mavros-extras

Also run the geographic lib script

wget https://raw.githubusercontent.com/mavlink/mavros/master/mavros/scripts/install_geographiclib_datasets.sh
./install_geographiclib_datasets.sh

Take a look at the docs for more info.