Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires badaso/core dev-bugfix/issues -> satisfiable by badaso/core[dev-bugfix/issues]. - badaso/core dev-bugfix/issues requires symfony/yaml 5.4.21 -> found symfony/yaml[v5.4.21] but these were not loaded, likely because it conflicts with another require.