problem with deepstream 3.0 sample

i tried to run deepstream-app -c source4_720p_dec_infer-resnet_tracker_sgie_tiled_display_int8.txt this demo and found it could not work well.
debug information like blow:
root@hite-All-Series:/home/DeepStream_Release/samples/configs/deepstream-app# deepstream-app -c source4_720p_dec_infer-resnet_tracker_sgie_tiled_display_int8.txt
** ERROR: <create_primary_gie_bin:96>: Failed to create ‘primary_gie_classifier’
** ERROR: <create_primary_gie_bin:150>: create_primary_gie_bin failed
** ERROR: <create_pipeline:957>: create_pipeline failed
** ERROR: main:544: Failed to create pipeline
Quitting
App run failed

i have checked my tensorRT
root@hite-All-Series:/opt# dpkg -l | grep TensorRT
ii libnvinfer-dev 5.0.2-1+cuda10.0 amd64 TensorRT development libraries and headers
ii libnvinfer-samples 5.0.2-1+cuda10.0 all TensorRT samples and documentation
ii libnvinfer5 5.0.2-1+cuda10.0 amd64 TensorRT runtime libraries
ii python-libnvinfer 5.0.2-1+cuda10.0 amd64 Python bindings for TensorRT
ii python-libnvinfer-dev 5.0.2-1+cuda10.0 amd64 Python development package for TensorRT
ii tensorrt 5.0.2.6-1+cuda10.0 amd64 Meta package of TensorRT

it’s there any reason for this problem? thanks for help

Can you do this, rm ~/.cache/gstreamer-1.0/ -rf
and run the app again, paste the log here?

hi amycao
log as blow:
root@hite-All-Series:/home/DeepStream_Release/samples/configs/deepstream-app# deepstream-app -c source4_720p_dec_infer-resnet_tracker_sgie_tiled_display_int8.txt

Warning. Could not open model engine file /home/DeepStream_Release/samples/configs/deepstream-app/…/…/models/Secondary_CarMake/resnet18.caffemodel_b16_int8.engine
Generating new TRT model engine
Using INT8 data type.
Warning: Flatten layer ignored. TensorRT implicitly flattens input to FullyConnected layers, but in other circumstances this will result in undefined behavior.

***** Storing serialized engine file as /home/DeepStream_Release/samples/configs/deepstream-app/…/…/models/Secondary_CarMake/resnet18.caffemodel_b16_int8.engine batchsize = 16 *****

Warning. Could not open model engine file /home/DeepStream_Release/samples/configs/deepstream-app/…/…/models/Secondary_CarColor/resnet18.caffemodel_b16_int8.engine
Generating new TRT model engine
Using INT8 data type.
Warning: Flatten layer ignored. TensorRT implicitly flattens input to FullyConnected layers, but in other circumstances this will result in undefined behavior.

***** Storing serialized engine file as /home/DeepStream_Release/samples/configs/deepstream-app/…/…/models/Secondary_CarColor/resnet18.caffemodel_b16_int8.engine batchsize = 16 *****

Warning. Could not open model engine file /home/DeepStream_Release/samples/configs/deepstream-app/…/…/models/Secondary_VehicleTypes/resnet18.caffemodel_b16_int8.engine
Generating new TRT model engine
Using INT8 data type.
Warning: Flatten layer ignored. TensorRT implicitly flattens input to FullyConnected layers, but in other circumstances this will result in undefined behavior.

***** Storing serialized engine file as /home/DeepStream_Release/samples/configs/deepstream-app/…/…/models/Secondary_VehicleTypes/resnet18.caffemodel_b16_int8.engine batchsize = 16 *****

Warning. Could not open model engine file /home/DeepStream_Release/samples/configs/deepstream-app/…/…/models/Primary_Detector/resnet10.caffemodel_b4_int8.engine
Generating new TRT model engine
Using INT8 data type.
^C** ERROR: <_intr_handler:133>: User Interrupted…

***** Storing serialized engine file as /home/DeepStream_Release/samples/configs/deepstream-app/…/…/models/Primary_Detector/resnet10.caffemodel_b4_int8.engine batchsize = 4 *****

Runtime commands:
h: Print this help
q: Quit

p: Pause
r: Resume

NOTE: To expand a source in the 2D tiled display and view object details, left-click on the source.
To go back to the tiled display, right-click anywhere on the window.

**PERF: FPS 0 (Avg) FPS 1 (Avg) FPS 2 (Avg) FPS 3 (Avg)
**PERF: 0.00 (0.00) 0.00 (0.00) 0.00 (0.00) 0.00 (0.00)
Quitting
App run successful

it’s that mean it’s working now??

but it show nothing, and no windows output

woh~~
it’s working now!!!, when i try again to run the deepstream-app

thank you amycao,

but can you please tell me the reason to do “rm ~/.cache/gstreamer-1.0/ -rf”

what dose it mean.

https://superuser.com/questions/366771/what-does-cache-do-it-consumes-a-huge-disk-space,
the link may help you, when your system environments have some changes, something like if you have some
new binaries updated, then you should remove the cache for gstreamer, ~/.cache/gstreamer-1.0/, reload
everything needed for app run.