Fatal error: Uncaught Error: Class "Phalcon\Config" not found in Phalcon Php application

Question

I installed Phalcon PHP version 5.0.0beta3 in my Ubuntu, because it's compatible with PHP 8.0, but when I run my application some Phalcon classes are not found, I already installed the psr module using the following command:

sudo apt install php8.0-psr

and I have installed phalcon.so by direct download from phalcon php github releases, so when I access my phpinfo() I can see it there:

evidence of phalcon.so instalation

any idea what's going on?

Answer 1

Phalcon 5 has a number of backwards incompatible changes. Most prominent is all the classes in the base Phalcon namespace were moved to more accurate locations.

• Phalcon\Config -> Phalcon\Config\Config
• Phalcon\Di -> Phalcon\Di\Di

Etc

Check the release notes at https://github.com/phalcon/cphalcon/blob/master/CHANGELOG-5.0.md for specific changes.