Build error on Linux

[kallikarls]

I get following build error when trying to build ros2-dotnet. The native ROS2 build was successful. Full build output is attached.

colcon build --merge-install fails with following error:

Starting >>> rcutils
--- stderr: rcutils
CMake Error at CMakeLists.txt:154 (find_package):
By not providing "Findosrf_testing_tools_cpp.cmake" in CMAKE_MODULE_PATH
this project has asked CMake to find a package configuration file provided
by "osrf_testing_tools_cpp", but CMake did not find one.

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

osrf_testing_tools_cppConfig.cmake
osrf_testing_tools_cpp-config.cmake

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

---

Failed <<< rcutils [ Exited with code 1 ]

ros2-dotnet-build-error.txt