Your requirements could not be resolved to an installable set of packages.
Problem 1
Root composer.json requires drupal/core-recommended 11.0.0-beta1@beta -> satisfiable by drupal/core-recommended[11.0.0-beta1].
drupal/core-recommended 11.0.0-beta1 requires sebastian/diff ~5.1.1 -> found sebastian/diff[5.1.1, 5.1.x-dev] but these were not loaded, likely because it conflicts with another require.
Installation failed, reverting ./composer.json and ./composer.lock to their original content.
Your requirements could not be resolved to an installable set of packages.
Problem 1
Installation failed, reverting ./composer.json and ./composer.lock to their original content.
How do I fix that