DeepStream4 not running sampels app

Hi, I have just installed DS4 with jetpack 4.2
I am trying to run “deepstream-app -c source30_720p_dec_infer-resnet_tiled_display_int8.txt”
and get the next error:
(gst-plugin-scanner:11002): GStreamer-WARNING **: 15:24:44.639: Failed to load plugin ‘/usr/lib/aarch64-linux-gnu/gstreamer-1.0/libnvdsgst_multistreamtiler.so’: libnvbufsurface.so.1.0.0: cannot open shared object file: No such file or directory

(gst-plugin-scanner:11002): GStreamer-WARNING **: 15:24:44.821: Failed to load plugin ‘/usr/lib/aarch64-linux-gnu/gstreamer-1.0/libnvdsgst_dewarper.so’: libnvdsbufferpool.so.1.0.0: cannot open shared object file: No such file or directory

(gst-plugin-scanner:11002): GStreamer-WARNING **: 15:24:44.837: Failed to load plugin ‘/usr/lib/aarch64-linux-gnu/gstreamer-1.0/libnvdsgst_multistream.so’: libnvdsbufferpool.so.1.0.0: cannot open shared object file: No such file or directory

(gst-plugin-scanner:11002): GStreamer-WARNING **: 15:24:44.859: Failed to load plugin ‘/usr/lib/aarch64-linux-gnu/gstreamer-1.0/libnvdsgst_infer.so’: libnvbufsurface.so.1.0.0: cannot open shared object file: No such file or directory

(gst-plugin-scanner:11002): GStreamer-WARNING **: 15:24:44.892: Failed to load plugin ‘/usr/lib/aarch64-linux-gnu/gstreamer-1.0/libnvdsgst_tracker.so’: libnvbufsurface.so.1.0.0: cannot open shared object file: No such file or directory

(gst-plugin-scanner:11002): GStreamer-WARNING **: 15:24:44.985: Failed to load plugin ‘/usr/lib/aarch64-linux-gnu/gstreamer-1.0/libnvdsgst_segvisual.so’: libnvdsbufferpool.so.1.0.0: cannot open shared object file: No such file or directory

(gst-plugin-scanner:11002): GStreamer-WARNING **: 15:24:45.189: Failed to load plugin ‘/usr/lib/aarch64-linux-gnu/gstreamer-1.0/libnvdsgst_ofvisual.so’: libnvdsbufferpool.so.1.0.0: cannot open shared object file: No such file or directory

(gst-plugin-scanner:11002): GStreamer-WARNING **: 15:24:45.398: Failed to load plugin ‘/usr/lib/aarch64-linux-gnu/gstreamer-1.0/libnvdsgst_dsexample.so’: libnvbufsurface.so.1.0.0: cannot open shared object file: No such file or directory
** WARN: <parse_streammux:474>: Unknown key ‘config-file’ for group [streammux]
** ERROR: <create_multi_source_bin:710>: Failed to create element ‘src_bin_muxer’
** ERROR: <create_multi_source_bin:772>: create_multi_source_bin failed
** ERROR: <create_pipeline:790>: create_pipeline failed
** ERROR: main:588: Failed to create pipeline
Quitting
App run failed

Hi vadimd,

The DS4 is for running with JetPack4.2.1, could you try again with the right version of JetPack?

Thanks