Nvstreammux + nvstreamdemux + nvcompositor fail

Hello,
on Tx2 4g R32.2,
We try to combine nvstreammux , nvstreamdemux with nvcompositor using the following command:
gst-launch-1.0 nvcompositor name=mixdisp sink_0::xpos=0 sink_0::ypos=0 sink_0::width=1920 sink_0::height=1080 sink_0::alpha=1 sink_0::zorder=0 ! nvoverlaysink sync=false videotestsrc ! ‘video/x-raw,format=YUY2,width=1920,height=1080,framerate=50/1’ ! videoconvert ! “video/x-raw,format=NV12” ! nvvideoconvert ! “video/x-raw(memory:NVMM),format=RGBA” ! nvmux.sink_0 nvstreammux width=1920 height=1080 batch-size=1 batched-push-timeout=40000000 live-source=true nvbuf-memory-type=4 name=nvmux ! nvstreamdemux name=nvdemux nvdemux.src_0 ! ‘video/x-raw(memory:NVMM),format=RGBA,width=1920,height=1080,framerate=50/1’ ! mixdisp.sink_0

then I received the following error, how can it be fixed?

0:00:00.119014368 20443 0x5586eff0c0 WARN omx gstomx.c:2826:plugin_init: Failed to load configuration file: Valid key file could not be found in search dirs (searched in: /home/cr/.config:/etc/xdg as per GST_OMX_CONFIG_DIR environment variable, the xdg user config directory (or XDG_CONFIG_HOME) and the system config directory (or XDG_CONFIG_DIRS)
Setting pipeline to PAUSED …
Pipeline is PREROLLING …
Redistribute latency…
Pipeline is PREROLLED …
Setting pipeline to PLAYING …
New clock: GstSystemClock
NVMAP_IOC_WRITE failed: Interrupted system call
NVMAP_IOC_WRITE failed: Interrupted system call
NVMAP_IOC_WRITE failed: Interrupted system call
NVMAP_IOC_WRITE failed: Interrupted system call
NVMAP_IOC_WRITE failed: Interrupted system call
NVMAP_IOC_WRITE failed: Interrupted system call

Hi,
The nvcompositor plugin is not compatible with DeepStream SDK plugins. Suggest use nvmultistreamtiler.