Can't run sample example

I encountered following error. and I used sample configuration file source30_720p_dec_infer-resnet_tiled_display_int8.txt

** (deepstream-app:16190): CRITICAL **: gst_ffmpeg_cfg_set_property: assertion ‘qdata->size == sizeof (gint64)’ failed
Unable to set device in gst_nvstreammux_change_state
Unable to set device in gst_nvstreammux_change_state
Unable to set device in gst_nvstreammux_change_state
** ERROR: main:490: Failed to set pipeline to PAUSED
Quitting

Here is my configuration:

[source0]
enable=1
#Type - 1=CameraV4L2 2=URI 3=MultiURI
type=2
uri=file://…/…/streams/sample_720p.mp4
num-sources=15
gpu-id=0

[source1]
enable=0
#Type - 1=CameraV4L2 2=URI 3=MultiURI
type=3
uri=file://…/…/streams/sample_720p.mp4
num-sources=15
gpu-id=0

[sink0]
enable=0
#Type - 1=FakeSink 2=EglSink 3=File
type=1
sync=1
source-id=0
gpu-id=0

[sink1]
enable=1
type=3
#1=mp4 2=mkv
container=1
#1=h264 2=h265 3=mpeg4

only SW mpeg4 is supported right now.

codec=3
sync=0
bitrate=2000000
output-file=out.mp4
source-id=0

Hi,
Can you check if nvidia-smi works and the deviceQuery sample in cuda samples works?

Hi Amy.

I think this is issue. Thanks!