termux --kali nethunter 命令kex开启vnc服务出现问题。"如何解决？

Question

#┌──(kali㉿localhost)-[~]
└─$ kex
#vncserver: No matching VNC server running for this user!
vncserver: No matching VNC server running for this user!
Error starting the KeX server.
Please try "nethunter kex kill" or restart your termux session and try again.

1. vnc服务就是图形化界面，现在就是无法开启，怎么解决？