Yolo-v4 on colab - ModuleNotFound - No module named 'uff'

Suggest you to run the cells to double check, especially below cell.

import os
if os.environ["GOOGLE_COLAB"] == "1":
    os.environ["bash_script"] = "setup_env.sh"
else:
    os.environ["bash_script"] = "setup_env_desktop.sh"

os.environ["NV_TAO_TF_TOP"] = "/tmp/tao_tensorflow1_backend/"

!sed -i "s|PATH_TO_TRT|$trt_untar_folder_path|g" $COLAB_NOTEBOOKS_PATH/tensorflow/$bash_script
!sed -i "s|TRT_VERSION|$trt_version|g" $COLAB_NOTEBOOKS_PATH/tensorflow/$bash_script
!sed -i "s|PATH_TO_COLAB_NOTEBOOKS|$COLAB_NOTEBOOKS_PATH|g" $COLAB_NOTEBOOKS_PATH/tensorflow/$bash_script

!sh $COLAB_NOTEBOOKS_PATH/tensorflow/$bash_script