dump1090 not working

[JPZone]

Hello,

I have recently installed the Raspberry Pi flight tracker onto a new Raspberry Pi. However the dump1090 isn't showing up when doing ipaddress/dump1090/gmap.html in a browser.
I did check if the service is running which it is and I have also done a restart.

I did have NGINX installed but shut that down to see if there was some interference.

Anything I can do to know why its stopped working.

[f14driver]

which variation of dump1090 are you using ? The FR24 variant or dump1090-FA from Flightaware ?

[JPZone]

It is the dump1090-mutability one.

[abcd567]

What are outputs of following commands?

apt-cache policy lighttpd | grep Installed 

apt-cache policy dump1090-mutability | grep Installed

[JPZone]

apt-cache policy lighttpd | grep Installed
1.4.69-1

 apt-cache policy dump1090-mutability | grep Installed
 1.15~20180310.4a16df3+dfsg-8.1

[abcd567]

Shutting down nginx is not enough. You have to remove it completely so that lighttpd can work

sudo apt purge nginx

sudo apt purge dump1090-mutability

sudo apt purge lighttpd  

sudo rm -rf /etc/lighttpd  

sudo rm -rf /user/share/dump1090-mutability

After above cleanup, reboot Pi. This will restart fr24feed, and when it finds dump1090 is missing, it will automatically install dump1090-mutability and lighttpd as dependency of dump1090-mutability. This will take few minutes after reboot of Pi. After few minutes, check status of fr24feed and web page:

IP/dump1090/gmap.html


.

[JPZone]

Done that and now getting a `write_locked - missing monitor file pointer` message when typing `sudo fr24feed status`