Fatal error: Uncaught Error: Class 'PhpSpec\ObjectBehavior' not found in /home/opcon/src/composer/vendor/phpro/soap-client/spec/Phpro/SoapClient/Exception/InvalidArgumentExceptionSpec.php:8 Stack trace: #0 {main} thrown in /home/opcon/src/composer/vendor/phpro/soap-client/spec/Phpro/SoapClient/Exception/InvalidArgumentExceptionSpec.php on line 8