Your requirements could not be resolved to an installable set of packages.
Problem 1
- Root composer.json requires drupal/core 11.0.x-dev -> satisfiable by drupal/core[11.0.x-dev].
- drupal/core 11.0.x-dev requires symfony/dependency-injection ^7.1 -> found symfony/dependency-injection[v7.1.0-BETA1, ..., 7.3.x-dev] but these were not loaded, likely because it conflicts with another require.
Problem 2
- drupal/core 11.0.x-dev requires symfony/dependency-injection ^7.1 -> found symfony/dependency-injection[v7.1.0-BETA1, ..., 7.3.x-dev] but these were not loaded, likely because it conflicts with another require.
- bluecadet/bc_api_base 3.x-dev requires drupal/core ^10||^11 -> satisfiable by drupal/core[11.0.x-dev].
- Root composer.json requires bluecadet/bc_api_base 3.x-dev -> satisfiable by bluecadet/bc_api_base[3.x-dev].