How to resolve this error ?

[amsts]

gst-launch-1.0 v4l2src device=/dev/video0 ! v4l2sink device=/dev/vide
o1
Setting pipeline to PAUSED ...
ERROR: Pipeline doesn't want to pause.
ERROR: from element /GstPipeline:pipeline0/GstV4l2Sink:v4l2sink0: Device
'/dev/video1' is not a output device.
Additional debug info:
v4l2_calls.c(636): gst_v4l2_open ():
/GstPipeline:pipeline0/GstV4l2Sink:v4l2sink0:
Capabilities: 0x84208000
Setting pipeline to NULL ...
Freeing pipeline ...




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