AttributeError: 'NoneType' object has no attribute 'set_property' deepstream 6.2

Please provide complete information as applicable to your setup.

• Hardware Platform (Jetson / GPU) Jetson AGX Orin
• DeepStream Version 6.2
• JetPack Version (valid for Jetson only) 5.1
• TensorRT Version
• NVIDIA GPU Driver Version (valid for GPU only)
• Issue Type( questions, new requirements, bugs) bugs

I have installed deepstream 6.2 and python apps along with the python bindings deepstream_python_apps/bindings at master · NVIDIA-AI-IOT/deepstream_python_apps · GitHub . However when running the first test sample i get the below error
python3 opt/nvidia/deepstream/deepstream-6.2/samples/streams/sample_720p.h264
Creating Pipeline

Creating Source

Creating H264Parser

Creating Decoder

Unable to create NvStreamMux
Unable to create pgie
Creating nv3dsink

Playing file file:///opt/nvidia/deepstream/deepstream-6.2/samples/streams/sample_720p.h264
Traceback (most recent call last):
File “”, line 258, in
File “”, line 196, in main
streammux.set_property(‘width’, 1920)
AttributeError: ‘NoneType’ object has no attribute ‘set_property’

I have tried the installation with & without virtual envs but i’m still facing the same issue.

Is this topic duplicate to 257449

Please check the suggestion shared in the above topic.


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