Your requirements could not be resolved to an installable set of packages.
Problem 1
- su-sws/stanford_profile 11.x-dev requires drupal/diff ^1.3 -> found drupal/diff[dev-1.x, 1.3.0, ..., 1.x-dev (alias of dev-1.x)] but it conflicts with your root composer.json require (1.1).
- su-sws/stanford_profile[11.0.0, ..., 11.1.0] require drupal/address ^1.2 -> found drupal/address[dev-1.x, 1.2.0, ..., 1.x-dev (alias of dev-1.x)] but it conflicts with your root composer.json require (^2.0).
- su-sws/stanford_profile[11.2.0, ..., 11.3.8] require drupal/core ~10.2.0 -> found drupal/core[10.2.0-alpha1, ..., 10.2.x-dev] but the package is fixed to 10.3.1 (lock file version) by a partial update and that version does not match. Make sure you list it as an argument for the update command.
- Root composer.json requires su-sws/stanford_profile ^11.0 -> satisfiable by su-sws/stanford_profile[11.0.0, ..., 11.x-dev].
Use the option --with-all-dependencies (-W) to allow upgrades, downgrades and removals for packages currently locked to specific versions.