config_infer_primary_yoloV9.txt, NvDsInfer Error: NVDSINFER_CUSTOM_LIB_FAILED

Please provide complete information as applicable to your setup.
Hi,
• Hardware Platform (Jetson / GPU) : Jetson Orin Nano
• DeepStream Version: DeepStream 7.1
• JetPack Version (valid for Jetson only) JatPack 6.1
• TensorRT Version 10.3.0.30
• NVIDIA GPU Driver Version (valid for GPU only)
• Issue Type( questions, new requirements, bugs)

My

Building the TensorRT Engine
Building complete

but after that I’m receiving error as below :-

0:29:34.433267382 18902 0xaaaae040f0a0 INFO nvinfer gstnvinfer.cpp:684:gst_nvinfer_logger:<primary_gie> NvDsInferContext[UID 1]: Info from NvDsInferContextImpl::buildModel() <nvdsinfer_context_impl.cpp:2138> [UID = 1]: serialize cuda engine to file: /Storage/DeepStream-Yolo/model_b1_gpu0_fp16.engine successfully
Implicit layer support has been deprecated
INFO: [Implicit Engine Info]: layers num: 0

0:29:34.943073530 18902 0xaaaae040f0a0 ERROR nvinfer gstnvinfer.cpp:678:gst_nvinfer_logger:<primary_gie> NvDsInferContext[UID 1]: Error in NvDsInferContextImpl::initResource() <nvdsinfer_context_impl.cpp:841> [UID = 1]: Detect-postprocessor failed to init resource because dlsym failed to get func NvDsInferParseYolo pointer
ERROR: Infer Context failed to initialize post-processing resource, nvinfer error:NVDSINFER_CUSTOM_LIB_FAILED
ERROR: Infer Context prepare postprocessing resource failed., nvinfer error:NVDSINFER_CUSTOM_LIB_FAILED
0:29:35.011187453 18902 0xaaaae040f0a0 WARN nvinfer gstnvinfer.cpp:914:gst_nvinfer_start:<primary_gie> error: Failed to create NvDsInferContext instance
0:29:35.011248248 18902 0xaaaae040f0a0 WARN nvinfer gstnvinfer.cpp:914:gst_nvinfer_start:<primary_gie> error: Config file path: /Storage/DeepStream-Yolo/config_infer_primary_yoloV9.txt, NvDsInfer Error: NVDSINFER_CUSTOM_LIB_FAILED

ERROR: main:713: Failed to set pipeline to PAUSED
Quitting
ERROR from primary_gie: Failed to create NvDsInferContext instance
Debug info: /dvs/git/dirty/git-master_linux/deepstream/sdk/src/gst-plugins/gst-nvinfer/gstnvinfer.cpp(914): gst_nvinfer_start (): /GstPipeline:pipeline/GstBin:primary_gie_bin/GstNvInfer:primary_gie:
Config file path: /Storage/DeepStream-Yolo/config_infer_primary_yoloV9.txt, NvDsInfer Error: NVDSINFER_CUSTOM_LIB_FAILED
App run failed

What did I do wrong?
I’m clueless here. Your guidance much appreciated

Best regards,
Sebastian
• How to reproduce the issue ? (This is for bugs. Including which sample app is using, the configuration files content, the command line used and other details for reproducing)
• Requirement details( This is for new requirement. Including the module name-for which plugin or for which sample application, the function description)

as the error shown, the app failed to get the postprocessing function. could you share the configurations of nvinfer? does the so lib in custom-lib-path exist?