Deepstream 5.1 deepstream-nvdsanalytics problem

jetson nano
jetpack 4.5.1
deepstream 5.1.0

python3 deepstream_nvdsanalytics.py file:///…/…/…/…/samples/streams/sample_720p.h264
Creating Pipeline

Creating streamux

Creating source_bin 0

Creating source bin
source-bin-00
Creating Pgie

Creating nvtracker

Creating nvdsanalytics

Creating tiler

Creating nvvidconv

Creating nvosd

Creating transform

Creating EGLSink

Adding elements to Pipeline

Linking elements in the Pipeline

Now playing…
1 : file:///…/…/…/…/samples/streams/sample_720p.h264
Starting pipeline

Using winsys: x11
gstnvtracker: Loading low-level lib at /opt/nvidia/deepstream/deepstream/lib/libnvds_nvmultiobjecttracker.so
gstnvtracker: Failed to open low-level lib at /opt/nvidia/deepstream/deepstream/lib/libnvds_nvmultiobjecttracker.so
dlopen error: /opt/nvidia/deepstream/deepstream/lib/libnvds_nvmultiobjecttracker.so: cannot open shared object file: No such file or directory
gstnvtracker: Failed to initilaize low level lib.
gstnvtracker: Loading low-level lib at /opt/nvidia/deepstream/deepstream/lib/libnvds_nvmultiobjecttracker.so
gstnvtracker: Failed to open low-level lib at /opt/nvidia/deepstream/deepstream/lib/libnvds_nvmultiobjecttracker.so
dlopen error: /opt/nvidia/deepstream/deepstream/lib/libnvds_nvmultiobjecttracker.so: cannot open shared object file: No such file or directory
gstnvtracker: Failed to initilaize low level lib.
gstnvtracker: Loading low-level lib at /opt/nvidia/deepstream/deepstream/lib/libnvds_nvmultiobjecttracker.so
gstnvtracker: Failed to open low-level lib at /opt/nvidia/deepstream/deepstream/lib/libnvds_nvmultiobjecttracker.so
dlopen error: /opt/nvidia/deepstream/deepstream/lib/libnvds_nvmultiobjecttracker.so: cannot open shared object file: No such file or directory
gstnvtracker: Failed to initilaize low level lib.
0:01:27.597500968 27874 0x400fc2d0 INFO nvinfer gstnvinfer.cpp:619:gst_nvinfer_logger: NvDsInferContext[UID 1]: Info from NvDsInferContextImpl::deserializeEngineAndBackend() <nvdsinfer_context_impl.cpp:1702> [UID = 1]: deserialized trt engine from :/opt/nvidia/deepstream/deepstream-5.1/samples/models/Primary_Detector/resnet10.caffemodel_b1_gpu0_fp16.engine
INFO: [Implicit Engine Info]: layers num: 3
0 INPUT kFLOAT input_1 3x368x640
1 OUTPUT kFLOAT conv2d_bbox 16x23x40
2 OUTPUT kFLOAT conv2d_cov/Sigmoid 4x23x40

0:01:27.598106450 27874 0x400fc2d0 INFO nvinfer gstnvinfer.cpp:619:gst_nvinfer_logger: NvDsInferContext[UID 1]: Info from NvDsInferContextImpl::generateBackendContext() <nvdsinfer_context_impl.cpp:1806> [UID = 1]: Use deserialized engine model: /opt/nvidia/deepstream/deepstream-5.1/samples/models/Primary_Detector/resnet10.caffemodel_b1_gpu0_fp16.engine
0:01:28.083859776 27874 0x400fc2d0 INFO nvinfer gstnvinfer_impl.cpp:313:notifyLoadModelStatus: [UID 1]: Load new model:dsnvanalytics_pgie_config.txt sucessfully
Decodebin child added: source

Decodebin child added: decodebin0

Error: gst-resource-error-quark: Resource not found. (3): gstfilesrc.c(533): gst_file_src_start (): /GstPipeline:pipeline0/GstBin:source-bin-00/GstURIDecodeBin:uri-decode-bin/GstFileSrc:source:
No such file “/…/…/…/…/samples/streams/sample_720p.h264”
Exiting app

I’m sure the h264 file is exist,i dont know how to solve it.
and i noticed that the log shows :
gstnvtracker: Failed to open low-level lib at /opt/nvidia/deepstream/deepstream/lib/libnvds_nvmultiobjecttracker.so
dlopen error: /opt/nvidia/deepstream/deepstream/lib/libnvds_nvmultiobjecttracker.so: cannot open shared object file: No such file or directory
so i check deepstream/lib and i don’t find the libnvds_nvmultiobjecttracker.so

do you have these files in your system?

Hi ,I can’t find “libnvds_nvmultiobjecttracker.so” in my system

It indicates you don’t get DS installed completely.
Please refer to Quickstart Guide — DeepStream 6.0 Release documentation to install DS on Jetson

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