hyades@hyades-Inspiron-N5010:~/gst/stage/bin$ ./gst-launch-1.0 videotestsrc ! autovideosink
0:00:00.017751389 24419      0x11482c0 ERROR           GST_PIPELINE ./grammar.y:670:priv_gst_parse_yyparse: no element "autovideosink"
WARNING: erroneous pipeline: no element "autovideosink"

hyades@hyades-Inspiron-N5010:~/gst/stage/bin$ ./gst-switch-srv
./tools/gstswitchserver.c:124:info: gst_switch_server init 0x1e61000
./tools/gstswitchserver.c:1424:info: Compose sink to 3001, 3002
./tools/gstcomposite.c:88:info: gst_composite init 0x1e62020
./tools/gstcomposite.c:155:warning: ignore changing mode in transition
0:00:00.340949507 24420      0x1e46d00 ERROR           GST_PIPELINE ./grammar.y:670:priv_gst_parse_yyparse: no element "intervideosrc"
0:00:00.341047152 24420      0x1e46d00 ERROR           GST_PIPELINE ./grammar.y:670:priv_gst_parse_yyparse: no element "intervideosrc"
0:00:00.341082944 24420      0x1e46d00 ERROR           GST_PIPELINE ./grammar.y:670:priv_gst_parse_yyparse: no element "videomixer"
0:00:00.342946612 24420      0x1e46d00 ERROR           GST_PIPELINE ./grammar.y:670:priv_gst_parse_yyparse: no element "intervideosink"
0:00:00.343171850 24420      0x1e46d00 ERROR           GST_PIPELINE ./grammar.y:994:priv_gst_parse_launch: No element named "source_b" - omitting link
0:00:00.343235652 24420      0x1e46d00 ERROR           GST_PIPELINE ./grammar.y:1015:priv_gst_parse_launch: No element named "mix" - omitting link
0:00:00.343300452 24420      0x1e46d00 ERROR           GST_PIPELINE ./grammar.y:994:priv_gst_parse_launch: No element named "source_a" - omitting link
0:00:00.343342443 24420      0x1e46d00 ERROR           GST_PIPELINE ./grammar.y:1015:priv_gst_parse_launch: No element named "mix" - omitting link
0:00:00.343391718 24420      0x1e46d00 ERROR           GST_PIPELINE ./grammar.y:994:priv_gst_parse_launch: No element named "mix" - omitting link
0:00:00.343667826 24420      0x1e46d00 ERROR           GST_PIPELINE ./grammar.y:1015:priv_gst_parse_launch: No element named "out" - omitting link
./tools/gstworker.c:227:error: missing: intervideosrc
./tools/gstworker.c:227:error: missing: intervideosrc
./tools/gstworker.c:227:error: missing: videomixer
./tools/gstworker.c:227:error: missing: intervideosink
./tools/gstworker.c:715:error: composite: failed to create new pipeline
./tools/gstcomposite.c:135:info: gst_composite finalize 0x1e62020
./tools/gstworker.c:129:info: gst_worker finalize 0x1e62020
./tools/gstswitchserver.c:1634:error: error preparing server
./tools/gstswitchserver.c:170:info: gst_switch_server finalize 0x1e61000
hyades@hyades-Inspiron-N5010:~/gst/stage/bin$