CMake failed

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Verbatim copy-paste:

 CMake Error at Turtlebot_on_noetic/ecl_core/ecl_linear_algebra/CMakeLists.txt:22 (find_package):
  By not providing "FindSophus.cmake" in CMAKE_MODULE_PATH this project has
  asked CMake to find a package configuration file provided by "Sophus", but
  CMake did not find one.

  Could not find a package configuration file provided by "Sophus" with any
  of the following names:

    SophusConfig.cmake
    sophus-config.cmake

  Add the installation prefix of "Sophus" to CMAKE_PREFIX_PATH or set
  "Sophus_DIR" to a directory containing one of the above files.  If "Sophus"
  provides a separate development package or SDK, be sure it has been
  installed.


-- Configuring incomplete, errors occurred!
See also "/home/ostrich/catkin_ws/build/CMakeFiles/CMakeOutput.log".
See also "/home/ostrich/catkin_ws/build/CMakeFiles/CMakeError.log".
make: *** [Makefile:2000: cmake_check_build_system] Error 1
Invoking "make cmake_check_build_system" failed