Your lock file does not contain a compatible set of packages. Please run composer update. Problem 1 - aws/aws-sdk-php is locked to version 3.296.5 and an update of this package was not requested. - aws/aws-sdk-php 3.296.5 requires php >=7.2.5 -> your php version (5.6.40) does not satisfy that requirement. Problem 2 - guzzlehttp/guzzle is locked to version 7.8.1 and an update of this package was not requested. - guzzlehttp/guzzle 7.8.1 requires php ^7.2.5 || ^8.0 -> your php version (5.6.40) does not satisfy that requirement. Problem 3 - guzzlehttp/promises is locked to version 2.0.2 and an update of this package was not requested. - guzzlehttp/promises 2.0.2 requires php ^7.2.5 || ^8.0 -> your php version (5.6.40) does not satisfy that requirement. Problem 4 - guzzlehttp/psr7 is locked to version 2.6.2 and an update of this package was not requested. - guzzlehttp/psr7 2.6.2 requires php ^7.2.5 || ^8.0 -> your php version (5.6.40) does not satisfy that requirement. Problem 5 - mtdowling/jmespath.php is locked to version 2.7.0 and an update of this package was not requested. - mtdowling/jmespath.php 2.7.0 requires php ^7.2.5 || ^8.0 -> your php version (5.6.40) does not satisfy that requirement. Problem 6 - psr/http-client is locked to version 1.0.3 and an update of this package was not requested. - psr/http-client 1.0.3 requires php ^7.0 || ^8.0 -> your php version (5.6.40) does not satisfy that requirement. Problem 7 - psr/http-factory is locked to version 1.0.2 and an update of this package was not requested. - psr/http-factory 1.0.2 requires php >=7.0.0 -> your php version (5.6.40) does not satisfy that requirement. Problem 8 - psr/http-message is locked to version 2.0 and an update of this package was not requested. - psr/http-message 2.0 requires php ^7.2 || ^8.0 -> your php version (5.6.40) does not satisfy that requirement. Problem 9 - symfony/deprecation-contracts is locked to version v2.5.2 and an update of this package was not requested. - symfony/deprecation-contracts v2.5.2 requires php >=7.1 -> your php version (5.6.40) does not satisfy that requirement. Problem 10 - symfony/polyfill-mbstring is locked to version v1.28.0 and an update of this package was not requested. - symfony/polyfill-mbstring v1.28.0 requires php >=7.1 -> your php version (5.6.40) does not satisfy that requirement.