Your requirements could not be resolved to an installable set of packages.
Problem 1
- Root composer.json requires symfony/config ^7.0 -> satisfiable by symfony/config[v7.0.0].
- symfony/config v7.0.0 requires symfony/filesystem ^6.4|^7.0 -> found symfony/filesystem[v6.4.0, v7.0.0] but these were not loaded, likely because it conflicts with another require.
Problem 2
- Root composer.json requires symfony/dependency-injection ^7.0 -> satisfiable by symfony/dependency-injection[v7.0.0].
- symfony/dependency-injection v7.0.0 requires symfony/var-exporter ^6.4|^7.0 -> found symfony/var-exporter[v6.4.0, v7.0.0] but these were not loaded, likely because it conflicts with another require.
Problem 3
- Root composer.json requires symfony/expression-language ^7.0 -> satisfiable by symfony/expression-language[v7.0.0].
- symfony/expression-language v7.0.0 requires symfony/cache ^6.4|^7.0 -> found symfony/cache[v6.4.0, v7.0.0] but these were not loaded, likely because it conflicts with another require.
Problem 4
- Root composer.json requires symfony/framework-bundle ^7.0.0 -> satisfiable by symfony/framework-bundle[v7.0.0].
- symfony/framework-bundle v7.0.0 requires symfony/cache ^6.4|^7.0 -> found symfony/cache[v6.4.0, v7.0.0] but these were not loaded, likely because it conflicts with another require.
Problem 5
- Root composer.json requires symfony/http-kernel ^7.0 -> satisfiable by symfony/http-kernel[v7.0.0].
- symfony/http-kernel v7.0.0 requires symfony/error-handler ^6.4|^7.0 -> found symfony/error-handler[v6.4.0, v7.0.0] but these were not loaded, likely because it conflicts with another require.
Problem 6
- Root composer.json requires symfony/browser-kit ^7.0 -> satisfiable by symfony/browser-kit[v7.0.0].
- symfony/browser-kit v7.0.0 requires symfony/dom-crawler ^6.4|^7.0 -> found symfony/dom-crawler[v6.4.0, v7.0.0] but these were not loaded, likely because it conflicts with another require.
Problem 7
- sonata-project/block-bundle 5.1.0 requires symfony/config ^5.4 || ^6.2 || ^7.0 -> satisfiable by symfony/config[v7.0.0].
- sonata-project/block-bundle 4.21.0 requires symfony/config ^4.4 || ^5.4 || ^6.2 -> found symfony/config[v4.4.0, ..., v4.4.44, v5.4.0, ..., v5.4.31, v6.2.0, ..., v6.4.0] but it conflicts with your root composer.json require (^7.0).
- sonata-project/block-bundle[5.0.0, ..., 5.0.1] require symfony/config ^5.4 || ^6.2 -> found symfony/config[v5.4.0, ..., v5.4.31, v6.2.0, ..., v6.4.0] but it conflicts with your root composer.json require (^7.0).
- symfony/config v7.0.0 requires symfony/filesystem ^6.4|^7.0 -> found symfony/filesystem[v6.4.0, v7.0.0] but these were not loaded, likely because it conflicts with another require.
- Root composer.json requires sonata-project/block-bundle ^4.21 || ^5.0 -> satisfiable by sonata-project/block-bundle[4.21.0, 5.0.0, 5.0.1, 5.1.0].