why ı am getting this error

[Minaygt]

(python3:10379): GStreamer-CRITICAL **: 13:56:56.403: gst_element_make_from_uri: assertion 'gst_uri_is_valid (uri)' failed
[ WARN:0] global ../modules/videoio/src/cap_gstreamer.cpp (1758) handleMessage OpenCV | GStreamer warning: Embedded video playback halted; module filesink0 reported: Could not open file "/home/mina/udemy_ws/data/Output/in_new.avi" for writing.
[ WARN:0] global ../modules/videoio/src/cap_gstreamer.cpp (1758) handleMessage OpenCV | GStreamer warning: Embedded video playback halted; module filesink0 reported: GStreamer error: state change failed and some element failed to post a proper error message with the reason for the failure.
[ WARN:0] global ../modules/videoio/src/cap_gstreamer.cpp (1592) open OpenCV | GStreamer warning: GStreamer: cannot put pipeline to play

[ERROR:0] global ../modules/videoio/src/cap.cpp (415) open VIDEOIO(CV_IMAGES): raised OpenCV exception:

OpenCV(4.2.0) ../modules/videoio/src/cap_images.cpp:253: error: (-5:Bad argument) CAP_IMAGES: can't find starting number (in the name of file): /home/mina/udemy_ws/data/Output/in_new.avi in function 'icvExtractPattern'



(python3:10379): GStreamer-CRITICAL **: 13:56:56.416: gst_element_make_from_uri: assertion 'gst_uri_is_valid (uri)' failed
[ WARN:0] global ../modules/videoio/src/cap_gstreamer.cpp (1758) handleMessage OpenCV | GStreamer warning: Embedded video playback halted; module filesink1 reported: Could not open file "/home/mina/udemy_ws/data/Output/out_new.avi" for writing.
[ WARN:0] global ../modules/videoio/src/cap_gstreamer.cpp (1758) handleMessage OpenCV | GStreamer warning: Embedded video playback halted; module filesink1 reported: GStreamer error: state change failed and some element failed to post a proper error message with the reason for the failure.
[ WARN:0] global ../modules/videoio/src/cap_gstreamer.cpp (1592) open OpenCV | GStreamer warning: GStreamer: cannot put pipeline to play

[ERROR:0] global ../modules/videoio/src/cap.cpp (415) open VIDEOIO(CV_IMAGES): raised OpenCV exception:

OpenCV(4.2.0) ../modules/videoio/src/cap_images.cpp:253: error: (-5:Bad argument) CAP_IMAGES: can't find starting number (in the name of file): /home/mina/udemy_ws/data/Output/out_new.avi in function 'icvExtractPattern'

[asmorkalov]

Your OpenCV instance is not installed from pip, but built manually. It's not related to the repo. The error means, that GStreamer setup does not provide required video encoder.