Problem with installing LibreNMS

Help
1

Hi there, I am a fresh member of the LibreNMS Cmmunity. The reason is that i have problems with the installation of LibreNMS obviously. When i do an ./validate.php i get the following output (this is a partially output):

Fatal Error: Uncaught Error: Call to undefined function LibreNMS\Util\app() in opt/librenms/LibreNMS/Util/Laravel.php:71
Stack trace:
#0 /opt/librenms/LibreNMS/Util/Util/Laravel.php(38): LibreNMS\Util\Laravel::isBooted()
#1 /opt/librenms/includes/init.php(96): LibreNMS\Util\Laravel::bootCli()
#2 /opt/librenms/validate.php(134): require(’/opt/librenms/i…’)
#3 (main)
trown in /opt/librenms/LibreNMS/Util/Laravel.php on line 71
etc…

I am struggling with this problem since a few days, and i did not find a solution yet.
Does anyone has a clue?

Greetings, Jos

2

Not enough information here, but try this:

composer dump-autoload
composer install --no-scripts

and then

composer update

3

I am aware of the fact that i did not give much information. But what information do you need more? I am a newbee. But i did what you proposed and i got the following output:

Composer could not find a composer.json file in /home/librenms.To initialize a project, please create a composer.json as discribed in the https://getcomposer.org/ “Getting Started” section.

4

Let us know what OS are you using at first. The command I gave you you need to run in the directory where you cloned the LibreNMS, not in your home directory.

5

Ubuntu 18.04.3 LTS codename Bionic

6

Are you sure that you installed dependencies?

./scripts/composer_wrapper.php install --no-dev

7

Yes, i just did. There were a few yellow lines passing my screen, i cannot see what it says. The last line says "You can also run ‘php --ini’ inside terminal to see wich files are used by PHP in CLI mode.

8

Maybe some problems occured during that step. I’d repeat whole process from scratch to be absolutely sure that no errors appeared while it was proceeding.

9

@Jos_Janssen you have not gotten the PHP dependencies installed.

Can you pastebin the full output of
./scripts/composer_wrapper.php install --no-dev ?