(RT_LIBRARY-NOTFOUND) unset. Message: RT Library

edit

Hello,

I am trying to follow the ROS tutorial and create my own package. I see the following error when I try to invoke catkin_make:

Base path: /home/parth/dev/ros
Source space: /home/parth/dev/ros/src
Build space: /home/parth/dev/ros/build
Devel space: /home/parth/dev/ros/devel
Install space: /home/parth/dev/ros/install
####
#### Running command: "cmake /home/parth/dev/ros/src -DCATKIN_DEVEL_PREFIX=/home/parth/dev/ros/devel -DCMAKE_INSTALL_PREFIX=/home/parth/dev/ros/install -G Unix Makefiles" in "/home/parth/dev/ros/build"
####
-- Using CATKIN_DEVEL_PREFIX: /home/parth/dev/ros/devel
-- Using CMAKE_PREFIX_PATH: /opt/ros/lunar
-- This workspace overlays: /opt/ros/lunar
-- Using PYTHON_EXECUTABLE: /home/parth/anaconda3/bin/python
-- Using Debian Python package layout
-- Using empy: /usr/bin/empy
-- Using CATKIN_ENABLE_TESTING: ON
-- Call enable_testing()
-- Using CATKIN_TEST_RESULTS_DIR: /home/parth/dev/ros/build/test_results
-- Found gmock sources under '/usr/src/gmock': gmock will be built
-- Found gtest sources under '/usr/src/gmock': gtests will be built
-- Using Python nosetests: /home/parth/anaconda3/bin/nosetests
CMake Error at /opt/ros/lunar/share/catkin/cmake/assert.cmake:17 (message):


  Assertion failed: check for file existence, but filename
  (RT_LIBRARY-NOTFOUND) unset.  Message: RT Library

Call Stack (most recent call first):
  /opt/ros/lunar/share/catkin/cmake/tools/rt.cmake:42 (assert_file_exists)
  /opt/ros/lunar/share/catkin/cmake/all.cmake:147 (include)
  /opt/ros/lunar/share/catkin/cmake/catkinConfig.cmake:20 (include)
  CMakeLists.txt:52 (find_package)

-- Configuring incomplete, errors occurred!
See also "/home/parth/dev/ros/build/CMakeFiles/CMakeOutput.log".
See also "/home/parth/dev/ros/build/CMakeFiles/CMakeError.log".
Invoking "cmake" failed