DeepStream Python Apps samples/models/Primary_Detector/resnet10.caffemodel_b1_gpu0_int8.engine open error

Please provide complete information as applicable to your setup.

• Hardware Platform (Jetson / GPU) Jetson nano
• DeepStream Version6.0
• JetPack Version (valid for Jetson only) 4.6
• TensorRT Version 8.0.1
• Issue Type I followed the python bindings from this repository : GitHub - NVIDIA-AI-IOT/deepstream_python_apps: DeepStream SDK Python bindings and sample applications. I want to run de test1 app and I keep getting this error :

raph@raph-desktop:~/deepstream_python_apps/apps/deepstream-test1-usbcam$ python3 deepstream_test_1_usb.py /dev/video0
Creating Pipeline

Creating Source

Creating Video Converter

Creating EGLSink

Playing cam /dev/video0
Adding elements to Pipeline

Linking elements in the Pipeline

Starting pipeline

Using winsys: x11
0:00:02.114197739 21109 0x1a0d8130 WARN nvinfer gstnvinfer.cpp:635:gst_nvinfer_logger: NvDsInferContext[UID 1]: Warning from NvDsInferContextImpl::initialize() <nvdsinfer_context_impl.cpp:1161> [UID = 1]: Warning, OpenCV has been deprecated. Using NMS for clustering instead of cv::groupRectangles with topK = 20 and NMS Threshold = 0.5
ERROR: Deserialize engine failed because file path: /home/raph/deepstream_python_apps/apps/deepstream-test1-usbcam/…/…/…/…/samples/models/Primary_Detector/resnet10.caffemodel_b1_gpu0_int8.engine open error
0:00:04.893405722 21109 0x1a0d8130 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/raph/deepstream_python_apps/apps/deepstream-test1-usbcam/…/…/…/…/samples/models/Primary_Detector/resnet10.caffemodel_b1_gpu0_int8.engine failed
0:00:04.893596246 21109 0x1a0d8130 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/raph/deepstream_python_apps/apps/deepstream-test1-usbcam/…/…/…/…/samples/models/Primary_Detector/resnet10.caffemodel_b1_gpu0_int8.engine failed, try rebuild
0:00:04.893633017 21109 0x1a0d8130 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
ERROR: Cannot access prototxt file ‘/home/raph/deepstream_python_apps/apps/deepstream-test1-usbcam/…/…/…/…/samples/models/Primary_Detector/resnet10.prototxt’
ERROR: failed to build network since parsing model errors.
ERROR: failed to build network.
0:00:04.894412353 21109 0x1a0d8130 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
0:00:04.894471625 21109 0x1a0d8130 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
0:00:04.894503500 21109 0x1a0d8130 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
0:00:04.894546418 21109 0x1a0d8130 WARN nvinfer gstnvinfer.cpp:841:gst_nvinfer_start: error: Failed to create NvDsInferContext instance
0:00:04.894569439 21109 0x1a0d8130 WARN nvinfer gstnvinfer.cpp:841:gst_nvinfer_start: error: Config file path: dstest1_pgie_config.txt, NvDsInfer Error: NVDSINFER_CONFIG_FAILED
Error: gst-resource-error-quark: Failed to create NvDsInferContext instance (1): /dvs/git/dirty/git-master_linux/deepstream/sdk/src/gst-plugins/gst-nvinfer/gstnvinfer.cpp(841): gst_nvinfer_start (): /GstPipeline:pipeline0/GstNvInfer:primary-inference:
Config file path: dstest1_pgie_config.txt, NvDsInfer Error: NVDSINFER_CONFIG_FAILED

Any idea what could be my problem
Thanks for your help

The real problem is app can’t access the prototxt.

“resnet10.caffemodel_b1_gpu0_int8.engine open error” this is expected because there is not resnet10.caffemodel_b1_gpu0_int8.engine file so it starts to build the TRT engine with the prototxt.

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