cd ${ISAAC_ROS_WS}/src
git clone https://github.com/NVIDIA-ISAAC-ROS/isaac_ros_common.git
git clone https://github.com/NVIDIA-AI-IOT/ROS2-NanoOWL.git
git clone https://github.com/NVIDIA-AI-IOT/nanoowl
git clone https://github.com/NVIDIA-AI-IOT/torch2trt
git clone --branch humble https://github.com/ros2/demos.git

cd ${ISAAC_ROS_WS}/src/isaac_ros_common
./scripts/run_dev.sh

      import torch
      torch.__version__
      

      sudo apt-get install python3-libnvinfer-dev
      

  If this fails, run the following command and try again:

      sudo apt-get install apt-utils
      

  In case the 'ModuleNotFound' error still shows up - The python bindings to tensorrt are available in  ```dist-packages ```, which may not be visible to your environment. We add  ```dist-packages ``` to  ```PYTHONPATH ``` to make this work:

      export PYTHONPATH=/usr/lib/python3.8/dist-packages:$PYTHONPATH
      

  If  ```tensorrt ``` is still not installed, try the following command:

      pip install pycuda
      

      cd ${ISAAC_ROS_WS}/src
      git clone --branch v0.13.0 https://github.com/pytorch/vision.git
      cd vision
      pip install .
      

  Verify that torchvision has been installed correctly using the interactive Python interpreter by running python from terminal, and these commands:

      cd ../
      import torchvision
      torchvision.__version__
      

  If it says ‘ModuleNotFound’, try each of the following and check again following the steps above:

      sudo apt install nvidia-cuda-dev
      pip install ninja
      sudo apt-get install ninja-build
      

      pip install transformers
      

      pip install matplotlib
      

      cd ${ISAAC_ROS_WS}/src/torch2trt
      pip install .
      

      cd ${ISAAC_ROS_WS}/src/nanoowl
      pip install .