500 internal error after deploying

@Sinnbeck Thanks for replying... After trying to run php artisan key:generate command , I get... "Your composer dependencies require a PHP version >= 8.0.2. you are running 7.4.28". But the thing is I have already updated my php version for domain.

@battlecry11 What does php -v give you. It sounds like the change on change havent gone through. Maybe you need to restart something there.

@Sinnbeck In my index.php file I commented the whole code and wrote simply <?php phpinfo(); which says I am using 8.1.3 version of php.

@battlecry11 Yeah that is for the webserver. Be aware that the webserver and cli (commandline) can run different versions

@Sinnbeck Yes I checked and in cli it shows 7.4.28... Any fixes?

@battlecry11 Hard to say as I dont know what your host allows you to change. But perhaps that interface has a button for both web and cli when changing versions?

@Sinnbeck I am using Plesk software, my system administrator updated php version to 8.1.3 for one of our domains.

@battlecry11 So there are multiple sites on the same server? You might be able to run with a specific version

Can you post the output of the both of these

which php
which composer

@Sinnbeck Yes, of course /usr/local/bin/php /usr/local/bin/composer

@battlecry11 Can you try this then. It should run the correct version of php with composer.

/usr/local/bin/php8.0 /usr/local/bin/composer install

and if that works

/usr/local/bin/php8.0 artisan key:generate

@Sinnbeck Sorry, I did not understand. Could you please explain "/usr/local/bin/php8.0 /usr/local/bin/composer install "?

@battlecry11 Open a terminal and run that command. If you run composer install it will just run the composer program with the default php. But if you prefix it with the actual version you want to use (php8.0) it will use that instead. Same goes for artisan

@Sinnbeck It says /usr/local/bin/php8.0 : no such file or directory

@battlecry11 Ok. It was a guess as to there the binary was. try /usr/bin/php8.0

Or try asking the server people

@Sinnbeck Meanwhile I uploaded laravel8 project instead of laravel9 , which support php 7.4.28 (my cli version), now it shows laravel starting page. Could you please tell me what next steps should i make ? I am trying to run composer install but it gives me error.. (I am not able to instert url here couse it's my first day of using forum)... So , it says: Your lock file does not contain a compatible set of packages. Please run composer update. Problem 1 -psr/log is locked to version 2.0.0 and update of this package was not requested. -psr/log 2.0.0 requires php>=8.0.0 -> your php version (7.4.28) does not satisfy that requirement.

@battlecry11 I have already given you steps to run composer and artisan with a specific php version, but as I dont know the set up of the server I cannot give you the correct path. One more idea. Try which php8.0

@Sinnbeck Thank you very much.

@battlecry11 Did that command give anything? :)

@Sinnbeck nah... it says the same _ no such file or directory unfortunately

@battlecry11 Dang. Can you check with your server people if they can help find where php8 is installed on the server? :)

@Sinnbeck Yes , figured it out and it's in /opt/plesk/php/8.1/bin/php

@battlecry11 Awesome. Would never have guessed that.

Can you now try

/opt/plesk/php/8.1/bin/php /usr/local/bin/composer install

and

/opt/plesk/php/8.1/bin/php artisan key:generate

@Sinnbeck first one says: "COMPOSER_BIN="/opy/psa/var/modules/composer/composer.phar"

[ -e "$COMPOSER_BIN" ] || {echo " '$COMPOSER_BIN' not dound" >&2; exit 1;}

[ -x "$COMPOSER_BIN" ] || {echo " '$COMPOSER_BIN' is not executable" >&2; exit 1;}

"$COMPOSER_BIN" "$0"

And the second: APPLICATION KEY Is generated successfully,

thank you very much

@battlecry11 Ok. So it is installed and working now?

@Sinnbeck I think it is... I am using laravel as an api for my Next js application... So, I created subdomain api.example.com which serves laravel application. While example.com _ My Next js app. Now , I want to send request from my frontend to it. (But it does not send it because of CORS policy, so firstly I should handle it). Thank you once again for your help... So grateful... Definitely saved my day

@battlecry11 I suggest creating a new thread, as that is a bit off topic. And happy to help :)

@j00rd Please make a new thread and I am sure we can help you out :)

@Sinnbeck I've created a thread, hugely appreciate any help you may be able to offer!