Your requirements could not be resolved to an installable set of packages.
Problem 1
- Root composer.json requires ohdearapp/ohdear-php-sdk ^3.7 -> satisfiable by ohdearapp/ohdear-php-sdk[3.7.0, 3.8.0, 3.9.0, 3.10.0].
- ohdearapp/ohdear-php-sdk[3.7.0, ..., 3.10.0] require nesbot/carbon ^2.65.0 -> found nesbot/carbon[dev-master, 2.65.0, ..., 2.x-dev (alias of dev-master)] but it conflicts with your root composer.json require (2.63).
Problem 2
- laravel/pulse[v1.0.0-beta1, ..., v1.0.0-beta5] require nesbot/carbon ^2.67 -> found nesbot/carbon[dev-master, 2.67.0, ..., 2.x-dev (alias of dev-master)] but it conflicts with your root composer.json require (2.63).
- Root composer.json requires laravel/pulse ^1.0@beta -> satisfiable by laravel/pulse[v1.0.0-beta1, ..., v1.0.0-beta5].