vncserver-x11 not working

[kompi]

I have issue with VNC server on raspberry Pi it now working

When I checked sudo systemctl status vncserver-x11-serviced

it showed me

No devices to configure. Configuration failed.
(EE) Server terminated with error (2). Closing log file.
root@raspberrypi:/home/pi# sudo systemctl status vncserver-x11-serviced
● vncserver-x11-serviced.service - VNC Server in Service Mode daemon
Loaded: loaded (/usr/lib/systemd/system/vncserver-x11-serviced.service; enabled; vendor preset: enabled)
Active: active (running) since Tue 2020-03-31 02:19:44 CEST; 10min ago
Main PID: 462 (vncserver-x11-s)
Tasks: 6 (limit: 4915)
Memory: 10.7M
CGroup: /system.slice/vncserver-x11-serviced.service
├─462 /usr/bin/vncserver-x11-serviced -fg
└─468 /usr/bin/vncserver-x11-core -service

mar 31 02:29:19 raspberrypi vncserver-x11[468]: AgentInitCheck: agent comms failure
mar 31 02:29:24 raspberrypi vncserver-x11[468]: AgentInitCheck: no response from agent
mar 31 02:29:29 raspberrypi vncserver-x11[468]: AgentInitCheck: agent comms failure
mar 31 02:29:34 raspberrypi vncserver-x11[468]: AgentInitCheck: no response from agent
mar 31 02:29:39 raspberrypi vncserver-x11[468]: AgentInitCheck: agent comms failure
mar 31 02:29:44 raspberrypi vncserver-x11[468]: AgentInitCheck: no response from agent
mar 31 02:29:49 raspberrypi vncserver-x11[468]: AgentInitCheck: agent comms failure
mar 31 02:29:54 raspberrypi vncserver-x11[468]: AgentInitCheck: no response from agent
mar 31 02:29:59 raspberrypi vncserver-x11[468]: AgentInitCheck: agent comms failure
mar 31 02:30:04 raspberrypi vncserver-x11[468]: AgentInitCheck: no response from agent


How Can I fix it please?

thank you for your answers

[fruitoftheloom]

Removed unhelpful response, to early in morning !

[DirkS]

Any reason for not using RealVNC included in Raspbian Buster with Desktop ?

Eh... what makes you think that's not RealVNC?
vncserver-x11-serviced.service is the RealVNC systemd service file.