Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires sulu/content-bundle ^0.8.1 || ^0.8.1@dev -> satisfiable by sulu/content-bundle[0.8.1, 0.8.x-dev]. - sulu/content-bundle[0.8.1, ..., 0.8.x-dev] require sulu/sulu ^2.5.6 || ^2.6@dev -> satisfiable by sulu/sulu[2.6.0-RC1, ..., 2.6.x-dev]. - sulu/sulu[2.6.0-RC1, ..., 2.6.x-dev] conflict with doctrine/lexer 3.0.1. - coduo/php-matcher 6.0.15 requires doctrine/lexer ^3.0 -> satisfiable by doctrine/lexer[3.0.0, 3.0.1]. - Root composer.json requires coduo/php-matcher ^6.0.15 -> satisfiable by coduo/php-matcher[6.0.15].

Process completed with exit code 2.