roswasm_tutorials not working

[smihael]

Thanks for this great work. It seems that there's a bug in roswasm_tutorials' CMakeLists.txt.

When trying to launch the example mentioned in README:

roslaunch roswasm run_server.launch pkg:=roswasm_tutorials node:=listener.html

I get the following error:

Traceback (most recent call last):
  File "/sandbox/webgui_ws/devel/lib/roswasm/run.py", line 15, in <module>
    exec(compile(fh.read(), python_script, 'exec'), context)
  File "/sandbox/webgui_ws/src/roswasm_suite/roswasm/scripts/run.py", line 62, in <module>
    raise RuntimeError('Could not find any path, checked the following paths:\n%s' % '\n'.join(checked))
RuntimeError: Could not find any path, checked the following paths:
/sandbox/webgui_ws/devel/etc/roswasm_tutorials/listener.html
/sandbox/webgui_ws/devel/include/roswasm_tutorials/listener.html
/sandbox/webgui_ws/devel/lib/roswasm_tutorials/listener.html
/sandbox/webgui_ws/devel/libexec/roswasm_tutorials/listener.html
/sandbox/webgui_ws/devel/share/roswasm_tutorials/listener.html
/sandbox/webgui_ws/src/roswasm_suite/roswasm_tutorials/listener.html
/opt/ros/noetic/etc/roswasm_tutorials/listener.html

After linking the file manually from src/roswasm_suite/roswasm_tutorials/www/ to devel/lib/roswasm_tutorials/ demo works as intended.

I'm using catkin build and ROS noetic on Ubuntu 20.04.