Running deepstream-occupancy-analytics with DeepStream 6.0.1 giving me error on Jetson Nano

Please provide complete information as applicable to your setup.

• Hardware Platform (Jetson / GPU) | Jetson
• DeepStream Version | 6.0.1
• JetPack Version (valid for Jetson only) | Jetpack 4.6.3 (L4T 32.7.3)
• TensorRT Version |
• NVIDIA GPU Driver Version (valid for GPU only) -
• Issue Type( questions, new requirements, bugs)
After installing DeepStream SDK 6.0.1 as per this guide, and after successfully building deepstream-occupancy-analytics, I try running the following command:

./deepstream-test5-analytics -c config/test5_config_file_src_infer_tlt.txt

I get this warning and these errors:

(deepstream-test5-analytics:27294): GStreamer-WARNING **: 13:31:00.621: Failed to load plugin '/usr/lib/aarch64-linux-gnu/gstreamer-1.0/deepstream/': /usr/lib/aarch64-linux-gnu/gstreamer-1.0/deepstream/ undefined symbol: nvds_msg2p_generate_multiple_new
** ERROR: <create_msg_conv_broker_bin:234>: Failed to create 'sink_sub_bin_transform2'
** ERROR: <create_msg_conv_broker_bin:278>: create_msg_conv_broker_bin failed
** ERROR: <create_sink_bin:781>: create_sink_bin failed
** ERROR: <create_processing_instance:815>: create_processing_instance failed
** ERROR: <create_pipeline:1326>: create_pipeline failed
** ERROR: <main:1041>: Failed to create pipeline

I traced the issue to a non-existent GStreamer plugin by first of all running rm ${HOME}/.cache/gstreamer-1.0/registry.aarch64.bin.
Running gst-inspect-1.0 nvmsgbroker prints a quite long output (what matters is that it’s available).
However, running gst-inspect-1.0 nvmsgconv gives the following error message:

No such element or plugin 'nvmsgconv'

Could someone please help me in getting this plugin? I’ve looked everywhere but couldn’t find anything.

There is a similar issue reported in github and according to the description here undefined symbol: nvds_msg2p_generate_multiple_new · Issue #39 · NVIDIA-AI-IOT/deepstream-occupancy-analytics · GitHub,
this issue is solved on branch ds_6.0, please check if you are using this branch.

Yes I found out that copying the file from the deepstream-occupancy-analytics GitHub repo [LINK] will create this issue. I rebuilt and installed it on my system and now that error message is gone.

However, a new error message is showing. It says:

Using winsys: x11 
gstnvtracker: Loading low-level lib at /opt/nvidia/deepstream/deepstream-6.0/lib/
gstnvtracker: Failed to open low-level lib at /opt/nvidia/deepstream/deepstream-6.0/lib/
 dlopen error: /opt/nvidia/deepstream/deepstream-6.0/lib/ cannot open shared object file: No such file or directory
gstnvtracker: Failed to initilaize low level lib.
** ERROR: <main:1088>: Failed to set pipeline to PAUSED

I tried to locate in my system, but I couldn’t find anything. How can I build/get this file?

Never mind, I read the changes done between DeepStream 5.1 and 6.0.1 and realized the three tracker libraries are deprecated and have been replaced with another library.
Site link: Application Migration to DeepStream 6.0.1 from DeepStream 5.X.

Glad to know issue is solved.

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