my other deepstream apps work, but this one seems to have an issue.
`/bin/vehicle-tracking-deepstream test002.h264 output.mp4
(gst-plugin-scanner:11361): GStreamer-WARNING **: 11:16:03.004: Failed to load plugin '/usr/lib/x86_64-linux-gnu/gstreamer-1.0/deepstream/libnvdsgst_udp.so': librivermax.so.0: cannot open shared object file: No such file or directory
(gst-plugin-scanner:11361): GStreamer-WARNING **: 11:16:03.013: Failed to load plugin '/usr/lib/x86_64-linux-gnu/gstreamer-1.0/deepstream/libnvdsgst_inferserver.so': libtritonserver.so: cannot open shared object file: No such file or directory
(vehicle-tracking-deepstream:11360): GLib-GObject-WARNING **: 11:16:03.248: g_object_set_is_valid_property: object class 'nvv4l2h264enc' has no property named 'preset-level'
(vehicle-tracking-deepstream:11360): GLib-GObject-WARNING **: 11:16:03.248: g_object_set_is_valid_property: object class 'nvv4l2h264enc' has no property named 'insert-sps-pps'
(vehicle-tracking-deepstream:11360): GLib-GObject-WARNING **: 11:16:03.248: g_object_set_is_valid_property: object class 'nvv4l2h264enc' has no property named 'bufapi-version'
gstnvtracker: Loading low-level lib at /opt/nvidia/deepstream/deepstream-6.0/lib/libnvds_nvmultiobjecttracker.so
gstnvtracker: Batch processing is ON
gstnvtracker: Past frame output is OFF
[NvMultiObjectTracker] Initialized
ERROR: ../nvdsinfer/nvdsinfer_model_builder.cpp:1484 Deserialize engine failed because file path: /home/raider/Desktop/LAB WORK ONLY/vehicle_tracking_deepstream/cfg/../models/model_b1_gpu0_fp16.engine open error
0:00:00.799213009 11360 0x5649d0e10a00 WARN nvinfer gstnvinfer.cpp:635:gst_nvinfer_logger: NvDsInferContext[UID 1]: Warning from NvDsInferContextImpl::deserializeEngineAndBackend() <nvdsinfer_context_impl.cpp:1889> [UID = 1]: deserialize engine from file :/home/raider/Desktop/LAB WORK ONLY/vehicle_tracking_deepstream/cfg/../models/model_b1_gpu0_fp16.engine failed
0:00:00.799243882 11360 0x5649d0e10a00 WARN nvinfer gstnvinfer.cpp:635:gst_nvinfer_logger: NvDsInferContext[UID 1]: Warning from NvDsInferContextImpl::generateBackendContext() <nvdsinfer_context_impl.cpp:1996> [UID = 1]: deserialize backend context from engine from file :/home/raider/Desktop/LAB WORK ONLY/vehicle_tracking_deepstream/cfg/../models/model_b1_gpu0_fp16.engine failed, try rebuild
0:00:00.799251389 11360 0x5649d0e10a00 INFO nvinfer gstnvinfer.cpp:638:gst_nvinfer_logger: NvDsInferContext[UID 1]: Info from NvDsInferContextImpl::buildModel() <nvdsinfer_context_impl.cpp:1914> [UID = 1]: Trying to create engine from model files
File does not exist: yolov4-tiny-bus-car.cfg
YOLO config file or weights file is not exist
ERROR: ../nvdsinfer/nvdsinfer_model_builder.cpp:724 Failed to create network using custom network creation function
ERROR: ../nvdsinfer/nvdsinfer_model_builder.cpp:789 Failed to get cuda engine from custom library API
0:00:00.799530179 11360 0x5649d0e10a00 ERROR nvinfer gstnvinfer.cpp:632:gst_nvinfer_logger: NvDsInferContext[UID 1]: Error in NvDsInferContextImpl::buildModel() <nvdsinfer_context_impl.cpp:1934> [UID = 1]: build engine file failed
0:00:00.799543526 11360 0x5649d0e10a00 ERROR nvinfer gstnvinfer.cpp:632:gst_nvinfer_logger: NvDsInferContext[UID 1]: Error in NvDsInferContextImpl::generateBackendContext() <nvdsinfer_context_impl.cpp:2020> [UID = 1]: build backend context failed
0:00:00.799548510 11360 0x5649d0e10a00 ERROR nvinfer gstnvinfer.cpp:632:gst_nvinfer_logger: NvDsInferContext[UID 1]: Error in NvDsInferContextImpl::initialize() <nvdsinfer_context_impl.cpp:1257> [UID = 1]: generate backend failed, check config file settings
0:00:00.799719833 11360 0x5649d0e10a00 WARN nvinfer gstnvinfer.cpp:841:gst_nvinfer_start: error: Failed to create NvDsInferContext instance
0:00:00.799724910 11360 0x5649d0e10a00 WARN nvinfer gstnvinfer.cpp:841:gst_nvinfer_start: error: Config file path: cfg/pgie_config.txt, NvDsInfer Error: NVDSINFER_CONFIG_FAILED
[NvMultiObjectTracker] De-initialized
ERROR from element primary-nvinference-engine : Failed to create NvDsInferContext instance
Error details: gstnvinfer.cpp(841): gst_nvinfer_start (): /GstPipeline:Vehicle-Tracking-Pipeline/GstNvInfer:primary-nvinference-engine:
Config file path: cfg/pgie_config.txt, NvDsInfer Error: NVDSINFER_CONFIG_FAILED
N NE SE SV NV
N 0 0 0 0 0
NE 0 0 0 0 0
SE 0 0 0 0 0
SV 0 0 0 0 0
NV 0 0 0 0 0
`