Fresh Icinga installation. Unable to detect your Icinga 2 Core version (DeployFormsBug7530.php:70)


But I dont know how to resolve it. I just install Ubuntu server 20.04 and go through

icinga2 - The Icinga 2 network monitoring daemon (version: r2.12.1-1)

Copyright (c) 2012-2020 Icinga GmbH (
License GPLv2+: GNU GPL version 2 or later <>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

System information:
  Platform: Ubuntu
  Platform version: 20.04 LTS (Focal Fossa)
  Kernel: Linux
  Kernel version: 5.4.0-52-generic
  Architecture: x86_64

Build information:
  Compiler: GNU 9.3.0
  Build host: runner-wytxxqbb-project-298-concurrent-0
  OpenSSL version: OpenSSL 1.1.1f  31 Mar 2020

Application information:

General paths:
  Config directory: /etc/icinga2
  Data directory: /var/lib/icinga2
  Log directory: /var/log/icinga2
  Cache directory: /var/cache/icinga2
  Spool directory: /var/spool/icinga2
  Run directory: /run/icinga2

Old paths (deprecated):
  Installation root: /usr
  Sysconf directory: /etc
  Run directory (base): /run
  Local state directory: /var

Internal paths:
  Package data directory: /usr/share/icinga2
  State path: /var/lib/icinga2/icinga2.state
  Modified attributes path: /var/lib/icinga2/modified-attributes.conf
  Objects path: /var/cache/icinga2/icinga2.debug
  Vars path: /var/cache/icinga2/icinga2.vars
  PID path: /run/icinga2/

One thing. I connect this installation to my database which contain old configuration. I decide to install new one instead upgrade old one

i found similar problem, but it is not resolve my problem

Unable to detect your Icinga 2 Core version