Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires moox/address * -> satisfiable by moox/address[dev-feature/custom-fields]. - moox/address dev-feature/custom-fields requires moox/core dev-main -> satisfiable by moox/core[dev-main] from composer repo (https://repo.packagist.org) but moox/core[dev-feature/custom-fields] from path repo (packages/core) has higher repository priority. The packages from the higher priority repository do not match your constraint and are therefore not installable. That repository is canonical so the lower priority repo's packages are not installable. See https://getcomposer.org/repoprio for details and assistance. Problem 2 - Root composer.json requires moox/attribute * -> satisfiable by moox/attribute[dev-feature/custom-fields]. - moox/attribute dev-feature/custom-fields requires moox/core dev-main -> satisfiable by moox/core[dev-main] from composer repo (https://repo.packagist.org) but moox/core[dev-feature/custom-fields] from path repo (packages/core) has higher repository priority. The packages from the higher priority repository do not match your constraint and are therefore not installable. That repository is canonical so the lower priority repo's packages are not installable. See https://getcomposer.org/repoprio for details and assistance. Problem 3 - Root composer.json requires moox/audit * -> satisfiable by moox/audit[dev-feature/custom-fields]. - moox/audit dev-feature/custom-fields requires moox/core dev-main -> satisfiable by moox/core[dev-main] from composer repo (https://repo.packagist.org) but moox/core[dev-feature/custom-fields] from path repo (packages/core) has higher repository priority. The packages from the higher priority repository do not match your constraint and are therefore not installable. That repository is canonical so the lower priority repo's packages are not installable. See https://getcomposer.org/repoprio for details and assistance. Problem 4 - Root composer.json requires moox/backup-server * -> satisfiable by moox/backup-server[dev-feature/custom-fields]. - moox/backup-server dev-feature/custom-fields requires moox/core dev-main -> satisfiable by moox/core[dev-main] from composer repo (https://repo.packagist.org) but moox/core[dev-feature/custom-fields] from path repo (packages/core) has higher repository priority. The packages from the higher priority repository do not match your constraint and are therefore not installable. That repository is canonical so the lower priority repo's packages are not installable. See https://getcomposer.org/repoprio for details and assistance. Problem 5 - Root composer.json requires moox/build * -> satisfiable by moox/build[dev-feature/custom-fields]. - moox/build dev-feature/custom-fields requires moox/core dev-main -> satisfiable by moox/core[dev-main] from composer repo (https://repo.packagist.org) but moox/core[dev-feature/custom-fields] from path repo (packages/core) has higher repository priority. The packages from the higher priority repository do not match your constraint and are therefore not installable. That repository is canonical so the lower priority repo's packages are not installable. See https://getcomposer.org/repoprio for details and assistance. Problem 6 - Root composer.json requires moox/builder * -> satisfiable by moox/builder[dev-feature/custom-fields]. - moox/builder dev-feature/custom-fields requires moox/core dev-main -> satisfiable by moox/core[dev-main] from composer repo (https://repo.packagist.org) but moox/core[dev-feature/custom-fields] from path repo (packages/core) has higher repository priority. The packages from the higher priority repository do not match your constraint and are therefore not installable. That repository is canonical so the lower priority repo's packages are not installable. See https://getcomposer.org/repoprio for details and assistance. Problem 7 - Root composer.json requires moox/category * -> satisfiable by moox/category[dev-feature/custom-f