Streaming & reading the mp4 over RTSP url using Gstreamer - gstreamer

Question

I am trying to stream mp4 over rtsp url and read from other terminal but facing issue Service Unavailable (503)
Server Code : Reference From
./test-launch "filesrc location=./sample.mp4 \
! qtdemux \
! h264parse \
! decodebin \
! videoconvert \
! omxh264enc insert-sps-pps=true bitrate=16000000 \
! rtph264pay name=pay0"
Server Response :
stream ready at rtsp://127.0.0.1:8554/test
Client Code :
sudo gst-launch-1.0 -v rtspsrc location=rtsp://127.0.0.1:8554/test ! rtph264depay ! h264parse ! decodebin ! videoconvert ! autovideosink sync=false
Client Response :
Setting pipeline to PAUSED ...
error: XDG_RUNTIME_DIR not set in the environment.
Pipeline is live and does not need PREROLL ...
Got context from element 'autovideosink0': gst.gl.GLDisplay=context, gst.gl.GLDisplay=(GstGLDisplay)"\(GstGLDisplayX11\)\ gldisplayx11-0";
Progress: (open) Opening Stream
Progress: (connect) Connecting to rtsp://127.0.0.1:8554/test
Progress: (open) Retrieving server options
Progress: (open) Retrieving media info
ERROR: from element /GstPipeline:pipeline0/GstRTSPSrc:rtspsrc0: Unhandled error
Additional debug info:
gstrtspsrc.c(6161): gst_rtspsrc_send (): /GstPipeline:pipeline0/GstRTSPSrc:rtspsrc0:
Service Unavailable (503)
ERROR: pipeline doesn't want to preroll.
Setting pipeline to PAUSED ...
Setting pipeline to READY ...
Setting pipeline to NULL ...
Freeing pipeline ...