BBB sudo apt upgrade errors

[KenUnix]

While performing an sudo apt upgrade the following occurred..

Past upgrades had no issues.

debian@beaglebone:~$ sudo apt upgrade
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Calculating upgrade... Done
The following packages have been kept back:
  c9-core-installer
0 upgraded, 0 newly installed, 0 to remove and 1 not upgraded.
1 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Do you want to continue? [Y/n] y
Setting up nginx-full (1.14.2-2+deb10u3) ...
Job for nginx.service failed because the control process exited with error code.
See "systemctl status nginx.service" and "journalctl -xe" for details.
invoke-rc.d: initscript nginx, action "start" failed.
● nginx.service - A high performance web server and a reverse proxy server
   Loaded: loaded (/lib/systemd/system/nginx.service; enabled; vendor preset: en
abled)
   Active: failed (Result: exit-code) since Thu 2021-03-11 12:01:25 EST; 104ms a
go
     Docs: man:nginx(8)
  Process: 316 ExecStartPre=/usr/sbin/nginx -t -q -g daemon on; master_process o
n; (code=exited, status=0/SUCCESS)
  Process: 317 ExecStart=/usr/sbin/nginx -g daemon on; master_process on; (code=
exited, status=1/FAILURE)

Mar 11 12:01:24 beaglebone nginx[317]: nginx: [emerg] bind() to 0.0.0.0:80 faile
d (98: Address already in use)
Mar 11 12:01:24 beaglebone nginx[317]: nginx: [emerg] bind() to [::]:80 failed (
98: Address already in use)
Mar 11 12:01:24 beaglebone nginx[317]: nginx: [emerg] bind() to 0.0.0.0:80 faile
d (98: Address already in use)
Mar 11 12:01:24 beaglebone nginx[317]: nginx: [emerg] bind() to [::]:80 failed (
98: Address already in use)
Mar 11 12:01:25 beaglebone nginx[317]: nginx: [emerg] bind() to 0.0.0.0:80 faile
d (98: Address already in use)
Mar 11 12:01:25 beaglebone nginx[317]: nginx: [emerg] bind() to [::]:80 failed (
98: Address already in use)
Mar 11 12:01:25 beaglebone nginx[317]: nginx: [emerg] still could not bind()
Mar 11 12:01:25 beaglebone systemd[1]: nginx.service: Control process exited, co
de=exited, status=1/FAILURE
Mar 11 12:01:25 beaglebone systemd[1]: nginx.service: Failed with result 'exit-c
ode'.
Mar 11 12:01:25 beaglebone systemd[1]: Failed to start A high performance web se
rver and a reverse proxy server.
dpkg: error processing package nginx-full (--configure):
 installed nginx-full package post-installation script subprocess returned error
 exit status 1
Errors were encountered while processing:
 nginx-full
E: Sub-process /usr/bin/dpkg returned an error code (1)
debian@beaglebone:~$

debian@beaglebone:~$ cat /etc/dogtag
BeagleBoard.org Debian Buster IoT Image 2020-04-06
debian@beaglebone:~$ uname -a
Linux beaglebone 4.19.94-ti-r42 #1buster SMP PREEMPT Tue Mar 31 19:38:29 UTC 2020 armv7l GNU/Linux
debian@beaglebone:~$ lsb_release -a
No LSB modules are available.
Distributor ID:    Debian
Description:    Debian GNU/Linux 10 (buster)
Release:    10
Codename:    buster

Any ideas appreciated.

[KenUnix]

Since I do not use an email client I did

sudo apt remove nginx-full

sudo apt autoremove

Problem resolved...

The " c9-core-installer" still lingers.

[KenUnix]

Since I don't use Cloud nine I did

sudo apt-get remove c9-core-installer

sudo apt autoremove

Issue resolved..

Ticket closed.