data_utils

Hello! I have 2 questions when i try to rebuild your project in my computer.
The first is that when i run the process.py, it said "./pcl_mesh_sampling: not found". But i have install pcl.
The second is that in the bash.py, it said "No module named 'data'". I don't know where the module data_utils comes from.
Shall you tell me the solution?
Thanks a lot!