RTSP Multicast example

I tried to compile the RTSP-server multicast example “test-multicast.c”. But it is not working. when I try to connect vlc tells me there is an error. Log from the server:

stream ready at rtsp://127.0.0.1:8554/test
====== VPUENC: 4.8.2 build on Oct 10 2023 02:31:27. ======
	wrapper: 3.0.0 (VPUWRAPPER_ARM64_LINUX Build on Sep 27 2023 02:10:15)
	vpulib: 1.1.1
	firmware: 1.1.1.0
0:00:06.344896750 83118 0xffffb000f460 FIXME                default gstutils.c:4036:gst_pad_create_stream_id_internal:<videotestsrc0:src> Creating random stream-id, consider implementing a deterministic way of creating a stream-id
0:00:06.363818500 83118 0xffffb000f4c0 WARN              rtpsession gstrtpsession.c:2435:gst_rtp_session_chain_send_rtp_common:<rtpsession0> Can't determine running time for this packet without knowing configured latency
0:00:06.364391000 83118 0xffffb000f4c0 WARN              rtpsession gstrtpsession.c:2514:gst_rtp_session_chain_send_rtp_common:<rtpsession0> Don't have a clock yet and can't determine NTP time for this packet
0:00:06.369504375 83118 0xaaaaf9ae0120 FIXME              rtspmedia rtsp-media.c:4624:gst_rtsp_media_suspend: suspend for dynamic pipelines needs fixing
0:00:06.371051000 83118 0xaaaaf9ae0120 FIXME              rtspmedia rtsp-media.c:4624:gst_rtsp_media_suspend: suspend for dynamic pipelines needs fixing
0:00:06.371353125 83118 0xaaaaf9ae0120 WARN               rtspmedia rtsp-media.c:4663:gst_rtsp_media_suspend: media 0xffffb80441e0 was not prepared
0:00:06.372204375 83118 0xaaaaf9ae0120 WARN              rtspstream rtsp-stream.c:1686:alloc_ports_one_family:<GstRTSPStream@0xffffb804a350> failed to acquire address from pool
0:00:07.007009500 83118 0xaaaaf9ae0120 WARN               rtspmedia rtsp-media.c:4975:gst_rtsp_media_set_state: media 0xffffb80441e0 was not prepared