Cannot produce calibration binary for INT8 compression with YOLOv4

Alright, it finally went through. Not too sure what was going wrong before.

TAO_COMMAND = ' yolo_v4 export -m $EXPERIMENT_DIR_DOCK/experiment_dir_retrain/weights/yolov4_mobilenet_v2_epoch_120.tlt  \
                                -o $EXPERIMENT_DIR_DOCK/export_cmd/yolov4_mobilenet_v2_epoch_120_int8.etlt \
                                -e $SPECS_DIR_DOCK/yolo_v4_retrain_mobilenet_v2_coco.txt \
                                -k $KEY \
                                --cal_image_dir  $DATA_DIR_DOCK/training/train \
                                --data_type int8 \
                                --batch_size 16 \
                                --batches 50 \
                                --cal_cache_file $EXPERIMENT_DIR_DOCK/export_cmd/cal.bin \
                                --cal_data_file $EXPERIMENT_DIR_DOCK/export_cmd/cal.tensorfile'
                                

                                #--batch_size 16 \
                                #--batches 10 \
                                #--cal_data_file $EXPERIMENT_DIR_DOCK/export/cal.tensorfile
                                #--cal_cache_file $EXPERIMENT_DIR_DOCK/export/cal.bin'
print(TAO_COMMAND)
%env TAO_COMMAND = {TAO_COMMAND}
!tao $TAO_COMMAND