Jetson error

While opening jetson nano, not writing through dangling symlink is coming.
When I write sudo apt-get updade to the terminal it gives error. how ı can solving.

hello rdoyduk1,

  1. may I know which JetPack release version you’re working with,
    you may check system nodes for the details.
    for example,
$ cat /etc/nv_tegra_release
# R32 (release), REVISION: 4.3, GCID: 21589087, BOARD: t186ref, EABI: aarch64, DATE: Fri Jun 26 04:34:27 UTC 2020

2.are you using OTA update to upgrade your Nano platform? please also share the error message of sudo apt-get update
thanks