Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires dynamic/silverstripe-elemental-baseobject dev-silverstripe6, found dynamic/silverstripe-elemental-baseobject[dev-master, 1.0.0-alpha1, 1.0.0, 1.0.1, 1.0.x-dev, 2.0.0, ..., 2.1.x-dev, 3.0.0-alpha1, 3.0.0, 3.0.1, 3.0.x-dev, 4.0.0-alpha1, 4.0.0-beta1, 4.0.0-beta2, 4.x-dev, 5.x-dev (alias of dev-master)] but it does not match the constraint. Problem 2 - Root composer.json requires jonom/focuspoint dev-silverstripe6, found jonom/focuspoint[dev-master, 1.0.0, ..., 1.1.1, 2.0.0, ..., 2.5.0, 3.0.0-beta.1, ..., 3.x-dev (alias of dev-master), 4.0.0, ..., 4.x-dev, 5.0.0-beta1, 5.0.0] but it does not match the constraint.