What have you tried:
checking the source list but it seems there is no problem
What is the error:
Clearsigned file isn’t valid, got ‘NOSPLIT’ (does the network require authentication?)
Error: Failed to fetch http://http.kali.org/kali/dists/kali-rolling/InRelease Clearsigned file isn’t valid, got ‘NOSPLIT’ (does the network require authentication?)
Error: The repository ‘Index of / kali-rolling InRelease’ is not signed.
Notice: Updating from such a repository can’t be done securely, and is therefore disabled by default.
What device is this on:
A virtual machine in VMware Workstation Pro
are you on a school network?
yes, am using the school wifi network
that might be the issue. You network is blocking access to kali repos