Mosquito19

ERROR: cannot launch node of type [grid_map_demos/simple_demo]: can't locate node [simple_demo] in package [grid_map_demos]

3

I build from the source code successly,but when I run : $roslaunch grid_map_demos simple_demo.launch It shows: ERROR: cannot launch node of type [grid_map_demos/simple_demo]: can't locate node [simple_demo] in package [grid_map_demos]...

I want to make my kinect2's dataset and then use it,instead of using the TUM's dataset?