Error in gstreamer

hi
I have khadas vim3L board having ubuntu 20.04 (linux 4.9). i have webcam logitech c920 pro . which gives mjpeg and yuyv422 output.

I am getting error by running command

$ gst-launch-1.0 v4l2src device=/dev/video0 ! “image/jpeg,framerate=30/1,width=1280,height=720” ! jpegparse ! jpegdec ! videoconvert ! amlvenc ! rtph264pay ! udpsink host=192.168.13.184 port=6002 sync=false

Setting pipeline to PAUSED …
Pipeline is live and does not need PREROLL …
Setting pipeline to PLAYING …
New clock: GstSystemClock

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.443: gst_mini_object_unref: assertion ‘mini_object != NULL’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.443: gst_mini_object_ref: assertion ‘mini_object != NULL’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.443: gst_caps_is_empty: assertion ‘GST_IS_CAPS (caps)’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.443: gst_caps_intersect_full: assertion ‘GST_IS_CAPS (caps1)’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.443: gst_mini_object_unref: assertion ‘mini_object != NULL’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.443: gst_caps_intersect_full: assertion ‘GST_IS_CAPS (caps1)’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.443: gst_mini_object_unref: assertion ‘mini_object != NULL’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.444: gst_caps_is_fixed: assertion ‘GST_IS_CAPS (caps)’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.444: gst_caps_is_empty: assertion ‘GST_IS_CAPS (caps)’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.444: gst_caps_intersect_full: assertion ‘GST_IS_CAPS (caps1)’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.444: gst_caps_is_empty: assertion ‘GST_IS_CAPS (caps)’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.444: gst_mini_object_unref: assertion ‘mini_object != NULL’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.444: gst_mini_object_make_writable: assertion ‘mini_object != NULL’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.444: gst_caps_get_structure: assertion ‘GST_IS_CAPS (caps)’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.444: gst_caps_get_size: assertion ‘GST_IS_CAPS (caps)’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.444: gst_caps_fixate: assertion ‘GST_IS_CAPS (caps)’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.444: gst_caps_is_subset: assertion ‘superset != NULL’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.444: gst_caps_is_fixed: assertion ‘GST_IS_CAPS (caps)’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.445: gst_mini_object_unref: assertion ‘mini_object != NULL’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.445: gst_mini_object_ref: assertion ‘mini_object != NULL’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.445: gst_caps_is_empty: assertion ‘GST_IS_CAPS (caps)’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.445: gst_caps_intersect_full: assertion ‘GST_IS_CAPS (caps1)’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.445: gst_mini_object_unref: assertion ‘mini_object != NULL’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.445: gst_caps_intersect_full: assertion ‘GST_IS_CAPS (caps1)’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.445: gst_mini_object_unref: assertion ‘mini_object != NULL’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.445: gst_caps_is_fixed: assertion ‘GST_IS_CAPS (caps)’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.445: gst_caps_is_empty: assertion ‘GST_IS_CAPS (caps)’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.445: gst_caps_intersect_full: assertion ‘GST_IS_CAPS (caps1)’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.445: gst_caps_is_empty: assertion ‘GST_IS_CAPS (caps)’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.445: gst_mini_object_unref: assertion ‘mini_object != NULL’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.445: gst_mini_object_make_writable: assertion ‘mini_object != NULL’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.445: gst_caps_get_structure: assertion ‘GST_IS_CAPS (caps)’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.445: gst_caps_get_size: assertion ‘GST_IS_CAPS (caps)’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.445: gst_caps_fixate: assertion ‘GST_IS_CAPS (caps)’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.445: gst_caps_is_subset: assertion ‘superset != NULL’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.445: gst_caps_is_fixed: assertion ‘GST_IS_CAPS (caps)’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.455: gst_mini_object_unref: assertion ‘mini_object != NULL’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.455: gst_mini_object_ref: assertion ‘mini_object != NULL’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.455: gst_caps_is_empty: assertion ‘GST_IS_CAPS (caps)’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.455: gst_caps_intersect_full: assertion ‘GST_IS_CAPS (caps1)’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.455: gst_mini_object_unref: assertion ‘mini_object != NULL’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.455: gst_caps_intersect_full: assertion ‘GST_IS_CAPS (caps1)’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.455: gst_mini_object_unref: assertion ‘mini_object != NULL’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.455: gst_caps_is_fixed: assertion ‘GST_IS_CAPS (caps)’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.455: gst_caps_is_empty: assertion ‘GST_IS_CAPS (caps)’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.455: gst_caps_intersect_full: assertion ‘GST_IS_CAPS (caps1)’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.455: gst_caps_is_empty: assertion ‘GST_IS_CAPS (caps)’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.455: gst_mini_object_unref: assertion ‘mini_object != NULL’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.455: gst_mini_object_make_writable: assertion ‘mini_object != NULL’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.455: gst_caps_get_structure: assertion ‘GST_IS_CAPS (caps)’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.455: gst_caps_get_size: assertion ‘GST_IS_CAPS (caps)’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.455: gst_caps_fixate: assertion ‘GST_IS_CAPS (caps)’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.455: gst_caps_is_subset: assertion ‘superset != NULL’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.455: gst_caps_is_fixed: assertion ‘GST_IS_CAPS (caps)’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.456: gst_mini_object_unref: assertion ‘mini_object != NULL’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.456: gst_mini_object_ref: assertion ‘mini_object != NULL’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.456: gst_caps_is_empty: assertion ‘GST_IS_CAPS (caps)’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.456: gst_caps_intersect_full: assertion ‘GST_IS_CAPS (caps1)’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.456: gst_mini_object_unref: assertion ‘mini_object != NULL’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.456: gst_caps_intersect_full: assertion ‘GST_IS_CAPS (caps1)’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.456: gst_mini_object_unref: assertion ‘mini_object != NULL’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.456: gst_caps_is_fixed: assertion ‘GST_IS_CAPS (caps)’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.457: gst_caps_is_empty: assertion ‘GST_IS_CAPS (caps)’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.457: gst_caps_intersect_full: assertion ‘GST_IS_CAPS (caps1)’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.457: gst_caps_is_empty: assertion ‘GST_IS_CAPS (caps)’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.457: gst_mini_object_unref: assertion ‘mini_object != NULL’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.457: gst_mini_object_make_writable: assertion ‘mini_object != NULL’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.457: gst_caps_get_structure: assertion ‘GST_IS_CAPS (caps)’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.457: gst_caps_get_size: assertion ‘GST_IS_CAPS (caps)’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.457: gst_caps_fixate: assertion ‘GST_IS_CAPS (caps)’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.457: gst_caps_is_subset: assertion ‘superset != NULL’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.457: gst_caps_is_fixed: assertion ‘GST_IS_CAPS (caps)’ failed
ERROR: from element /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: Internal data stream error.
Additional debug info:
gstbasesrc.c(3072): gst_base_src_loop (): /GstPipeline:pipeline0/GstV4l2Src:v4l2src0:
streaming stopped, reason not-negotiated (-4)
Execution ended after 0:00:01.166737530
Setting pipeline to PAUSED …
Setting pipeline to READY …

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.458: gst_mini_object_unref: assertion ‘mini_object != NULL’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.458: gst_mini_object_ref: assertion ‘mini_object != NULL’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.458: gst_caps_is_empty: assertion ‘GST_IS_CAPS (caps)’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.458: gst_caps_intersect_full: assertion ‘GST_IS_CAPS (caps1)’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.458: gst_mini_object_unref: assertion ‘mini_object != NULL’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.458: gst_caps_intersect_full: assertion ‘GST_IS_CAPS (caps1)’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.458: gst_mini_object_unref: assertion ‘mini_object != NULL’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.458: gst_caps_is_fixed: assertion ‘GST_IS_CAPS (caps)’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.458: gst_caps_is_empty: assertion ‘GST_IS_CAPS (caps)’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.458: gst_caps_intersect_full: assertion ‘GST_IS_CAPS (caps1)’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.458: gst_caps_is_empty: assertion ‘GST_IS_CAPS (caps)’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.458: gst_mini_object_unref: assertion ‘mini_object != NULL’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.458: gst_mini_object_make_writable: assertion ‘mini_object != NULL’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.459: gst_caps_get_structure: assertion ‘GST_IS_CAPS (caps)’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.459: gst_caps_get_size: assertion ‘GST_IS_CAPS (caps)’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.459: gst_caps_fixate: assertion ‘GST_IS_CAPS (caps)’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.459: gst_caps_is_subset: assertion ‘superset != NULL’ failed

(gst-launch-1.0:7436): GStreamer-CRITICAL **: 11:30:12.459: gst_caps_is_fixed: assertion ‘GST_IS_CAPS (caps)’ failed
khadas@Khadas:~$

Please dont post duplicate topic.