[ros-users] [Discourse.ros.org] [Next Generation ROS/Troubleshooting] Build ROS2 master on Ubuntu 16 fails

[Snowman]

Trying to build master of ROS2 on my ubuntu box as of this morning and I'm getting a following failure. Any idea what might be wrong and how to fix it? 

+++ Building 'rosidl_generator_py'
==> '. /home/breh/ros2_wsx/build/rosidl_generator_py/cmake__build.sh && /usr/bin/make cmake_check_build_system' in '/home/breh/ros2_wsx/build/rosidl_generator_py'
==> '. /home/breh/ros2_wsx/build/rosidl_generator_py/cmake__build.sh && /usr/bin/make -j2 -l2' in '/home/breh/ros2_wsx/build/rosidl_generator_py'
[  2%] Generating Python code for ROS interfaces
[ 18%] Built target rosidl_generator_py__rosidl_generator_c
[ 20%] Built target rosidl_generator_py__cpp
[ 36%] Built target rosidl_generator_py__rosidl_typesupport_introspection_c
[ 52%] Built target rosidl_generator_py__rosidl_typesupport_introspection_cpp
[ 68%] Built target rosidl_generator_py__rosidl_typesupport_c
[ 68%] Built target rosidl_generator_py
[ 68%] Built target rosidl_generator_py__py
Scanning dependencies of target rosidl_generator_py__rosidl_typesupport_c__pyext
make[2]: *** No rule to make target 'rosidl_generator_py/rosidl_generator_py/_rosidl_generator_py_s.ep.rosidl_typesupport_c.c', needed by 'CMakeFiles/rosidl_generator_py__rosidl_typesupport_c__pyext.dir/rosidl_generator_py/rosidl_generator_py/_rosidl_generator_py_s.ep.rosidl_typesupport_c.c.o'.  Stop.
CMakeFiles/Makefile2:1134: recipe for target 'CMakeFiles/rosidl_generator_py__rosidl_typesupport_c__pyext.dir/all' failed
make[1]: *** [CMakeFiles/rosidl_generator_py__rosidl_typesupport_c__pyext.dir/all] Error 2
make[1]: *** Waiting for unfinished jobs....
Scanning dependencies of target rosidl_generator_py__rosidl_typesupport_introspection_c__pyext
make[2]: *** No rule to make target 'rosidl_generator_py/rosidl_generator_py/_rosidl_generator_py_s.ep.rosidl_typesupport_introspection_c.c', needed by 'CMakeFiles/rosidl_generator_py__rosidl_typesupport_introspection_c__pyext.dir/rosidl_generator_py/rosidl_generator_py/_rosidl_generator_py_s.ep.rosidl_typesupport_introspection_c.c.o'.  Stop.
CMakeFiles/Makefile2:71: recipe for target 'CMakeFiles/rosidl_generator_py__rosidl_typesupport_introspection_c__pyext.dir/all' failed
make[1]: *** [CMakeFiles/rosidl_generator_py__rosidl_typesupport_introspection_c__pyext.dir/all] Error 2
Makefile:138: recipe for target 'all' failed
make: *** [all] Error 2





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