Twig 2.0 support

[umpirsky]

Hi, I just installed this bundle and it seems like it's not Twig 2.0 compatible. And the reason is old version of sonata-project/doctrine-orm-admin-bundle, here is the complete dependency tree:

ed/blog-bundle v1.0.5 Symfony EDBlogBundle
|--doctrine/doctrine-bundle ~1.4
|  |--doctrine/dbal ~2.3
|  |  |--doctrine/common >=2.4,<2.8-dev
|  |  |  |--doctrine/annotations 1.*
|  |  |  |  |--doctrine/lexer 1.*
|  |  |  |  |  `--php >=5.3.2
|  |  |  |  `--php ^5.6 || ^7.0
|  |  |  |--doctrine/cache 1.*
|  |  |  |  `--php ~5.5|~7.0
|  |  |  |--doctrine/collections 1.*
|  |  |  |  `--php ^5.6 || ^7.0
|  |  |  |--doctrine/inflector 1.*
|  |  |  |  `--php >=5.3.2
|  |  |  |--doctrine/lexer 1.*
|  |  |  |  `--php >=5.3.2
|  |  |  `--php ~5.6|~7.0
|  |  `--php >=5.3.2
|  |--doctrine/doctrine-cache-bundle ~1.0
|  |  |--doctrine/cache ^1.4.2
|  |  |  `--php ~5.5|~7.0
|  |  |--doctrine/inflector ~1.0
|  |  |  `--php >=5.3.2
|  |  |--php >=5.3.2
|  |  `--symfony/doctrine-bridge ~2.2|~3.0
|  |--jdorn/sql-formatter ~1.1
|  |  `--php >=5.2.4
|  |--php >=5.5.9
|  |--symfony/console ~2.7|~3.0
|  |--symfony/dependency-injection ~2.7|~3.0
|  |--symfony/doctrine-bridge ~2.7|~3.0
|  `--symfony/framework-bundle ~2.7|~3.0
|--doctrine/doctrine-fixtures-bundle *
|  |--doctrine/data-fixtures ~1.0
|  |  |--doctrine/common ~2.2
|  |  |  |--doctrine/annotations 1.*
|  |  |  |  |--doctrine/lexer 1.*
|  |  |  |  |  `--php >=5.3.2
|  |  |  |  `--php ^5.6 || ^7.0
|  |  |  |--doctrine/cache 1.*
|  |  |  |  `--php ~5.5|~7.0
|  |  |  |--doctrine/collections 1.*
|  |  |  |  `--php ^5.6 || ^7.0
|  |  |  |--doctrine/inflector 1.*
|  |  |  |  `--php >=5.3.2
|  |  |  |--doctrine/lexer 1.*
|  |  |  |  `--php >=5.3.2
|  |  |  `--php ~5.6|~7.0
|  |  `--php ^5.6 || ^7.0
|  |--doctrine/doctrine-bundle ~1.0
|  |  |--doctrine/dbal ~2.3
|  |  |  |--doctrine/common >=2.4,<2.8-dev
|  |  |  |  |--doctrine/annotations 1.*
|  |  |  |  |  |--doctrine/lexer 1.*
|  |  |  |  |  |  `--php >=5.3.2
|  |  |  |  |  `--php ^5.6 || ^7.0
|  |  |  |  |--doctrine/cache 1.*
|  |  |  |  |  `--php ~5.5|~7.0
|  |  |  |  |--doctrine/collections 1.*
|  |  |  |  |  `--php ^5.6 || ^7.0
|  |  |  |  |--doctrine/inflector 1.*
|  |  |  |  |  `--php >=5.3.2
|  |  |  |  |--doctrine/lexer 1.*
|  |  |  |  |  `--php >=5.3.2
|  |  |  |  `--php ~5.6|~7.0
|  |  |  `--php >=5.3.2
|  |  |--doctrine/doctrine-cache-bundle ~1.0
|  |  |  |--doctrine/cache ^1.4.2
|  |  |  |  `--php ~5.5|~7.0
|  |  |  |--doctrine/inflector ~1.0
|  |  |  |  `--php >=5.3.2
|  |  |  |--php >=5.3.2
|  |  |  `--symfony/doctrine-bridge ~2.2|~3.0
|  |  |--jdorn/sql-formatter ~1.1
|  |  |  `--php >=5.2.4
|  |  |--php >=5.5.9
|  |  |--symfony/console ~2.7|~3.0
|  |  |--symfony/dependency-injection ~2.7|~3.0
|  |  |--symfony/doctrine-bridge ~2.7|~3.0
|  |  `--symfony/framework-bundle ~2.7|~3.0
|  |--php >=5.3.2
|  `--symfony/doctrine-bridge ~2.1
|--eko/feedbundle ~1.2
|  |--php ^5.4|^7.0
|  |--symfony/framework-bundle ^2.5|^3.0
|  |--zendframework/zend-feed >=2.0
|  |  |--php ^5.6 || ^7.0
|  |  |--zendframework/zend-escaper ^2.5
|  |  |  `--php >=5.5
|  |  `--zendframework/zend-stdlib ^2.7 || ^3.1
|  |     `--php ^5.6 || ^7.0
|  |--zendframework/zend-http >=2.0
|  |  |--php ^5.5 || ^7.0
|  |  |--zendframework/zend-loader ^2.5
|  |  |  `--php >=5.3.23
|  |  |--zendframework/zend-stdlib ^2.5 || ^3.0
|  |  |  `--php ^5.6 || ^7.0
|  |  |--zendframework/zend-uri ^2.5
|  |  |  |--php ^5.5 || ^7.0
|  |  |  |--zendframework/zend-escaper ^2.5
|  |  |  |  `--php >=5.5
|  |  |  `--zendframework/zend-validator ^2.5
|  |  |     |--container-interop/container-interop ^1.1
|  |  |     |  `--psr/container ^1.0
|  |  |     |     `--php >=5.3.0
|  |  |     |--php ^5.6 || ^7.0
|  |  |     `--zendframework/zend-stdlib ^2.7.6 || ^3.1
|  |  |        `--php ^5.6 || ^7.0
|  |  `--zendframework/zend-validator ^2.5
|  |     |--container-interop/container-interop ^1.1
|  |     |  `--psr/container ^1.0
|  |     |     `--php >=5.3.0
|  |     |--php ^5.6 || ^7.0
|  |     `--zendframework/zend-stdlib ^2.7.6 || ^3.1
|  |        `--php ^5.6 || ^7.0
|  `--zendframework/zend-servicemanager >=2.0
|     |--container-interop/container-interop ^1.2
|     |  `--psr/container ^1.0
|     |     `--php >=5.3.0
|     |--php ^5.6 || ^7.0
|     |--psr/container ^1.0
|     |  `--php >=5.3.0
|     `--zendframework/zend-stdlib ^3.1
|        `--php ^5.6 || ^7.0
|--friendsofsymfony/user-bundle *
|  |--paragonie/random_compat ^1 || ^2
|  |  `--php >=5.2.0
|  |--php ^5.5.9 || ^7.0
|  |--symfony/form ^2.7 || ^3.0
|  |--symfony/framework-bundle ^2.7 || ^3.0
|  |--symfony/security-bundle ^2.7 || ^3.0
|  |--symfony/templating ^2.7 || ^3.0
|  |--symfony/twig-bundle ^2.7 || ^3.0
|  `--twig/twig ^1.28 || ^2.0
|     `--php >=5.2.7
|--incenteev/composer-parameter-handler ~2.0
|  |--php >=5.3.3
|  `--symfony/yaml ~2.3|~3.0
|--jms/serializer-bundle ~0.13
|  |--jms/serializer ~0.11
|  |  |--doctrine/annotations 1.*
|  |  |  |--doctrine/lexer 1.*
|  |  |  |  `--php >=5.3.2
|  |  |  `--php ^5.6 || ^7.0
|  |  |--jms/metadata ~1.1
|  |  |  `--php >=5.3.0
|  |  |--jms/parser-lib 1.*
|  |  |  `--phpoption/phpoption >=0.9,<2.0-dev
|  |  |     `--php >=5.3.0
|  |  |--php >=5.3.2
|  |  `--phpcollection/phpcollection ~0.1
|  |     `--phpoption/phpoption 1.*
|  |        `--php >=5.3.0
|  |--php >=5.3.2
|  `--symfony/framework-bundle ~2.1
|--knplabs/knp-paginator-bundle *
|  |--knplabs/knp-components ~1.2
|  |  `--php >=5.3.2
|  |--php >=5.3.3
|  |--symfony/framework-bundle ~2.3|~3.0
|  `--twig/twig ~1.12|~2
|     `--php >=5.2.7
|--php >=5.3.3
|--sensio/framework-extra-bundle ~3.0,>=3.0.2
|  |--doctrine/common ~2.2
|  |  |--doctrine/annotations 1.*
|  |  |  |--doctrine/lexer 1.*
|  |  |  |  `--php >=5.3.2
|  |  |  `--php ^5.6 || ^7.0
|  |  |--doctrine/cache 1.*
|  |  |  `--php ~5.5|~7.0
|  |  |--doctrine/collections 1.*
|  |  |  `--php ^5.6 || ^7.0
|  |  |--doctrine/inflector 1.*
|  |  |  `--php >=5.3.2
|  |  |--doctrine/lexer 1.*
|  |  |  `--php >=5.3.2
|  |  `--php ~5.6|~7.0
|  |--symfony/dependency-injection ~2.3|~3.0
|  `--symfony/framework-bundle ~2.3|~3.0
|--sonata-project/doctrine-orm-admin-bundle ^2.3
|  |--doctrine/orm ~2.3
|  |  |--doctrine/collections ~1.1
|  |  |  `--php ^5.6 || ^7.0
|  |  |--doctrine/dbal ~2.4
|  |  |  |--doctrine/common >=2.4,<2.8-dev
|  |  |  |  |--doctrine/annotations 1.*
|  |  |  |  |  |--doctrine/lexer 1.*
|  |  |  |  |  |  `--php >=5.3.2
|  |  |  |  |  `--php ^5.6 || ^7.0
|  |  |  |  |--doctrine/cache 1.*
|  |  |  |  |  `--php ~5.5|~7.0
|  |  |  |  |--doctrine/collections 1.*
|  |  |  |  |  `--php ^5.6 || ^7.0
|  |  |  |  |--doctrine/inflector 1.*
|  |  |  |  |  `--php >=5.3.2
|  |  |  |  |--doctrine/lexer 1.*
|  |  |  |  |  `--php >=5.3.2
|  |  |  |  `--php ~5.6|~7.0
|  |  |  `--php >=5.3.2
|  |  |--ext-pdo *
|  |  |--php >=5.3.2
|  |  `--symfony/console ~2.0
|  |--sonata-project/admin-bundle ~2.3@dev
|  |  |--doctrine/common ~2.2
|  |  |  |--doctrine/annotations 1.*
|  |  |  |  |--doctrine/lexer 1.*
|  |  |  |  |  `--php >=5.3.2
|  |  |  |  `--php ^5.6 || ^7.0
|  |  |  |--doctrine/cache 1.*
|  |  |  |  `--php ~5.5|~7.0
|  |  |  |--doctrine/collections 1.*
|  |  |  |  `--php ^5.6 || ^7.0
|  |  |  |--doctrine/inflector 1.*
|  |  |  |  `--php >=5.3.2
|  |  |  |--doctrine/lexer 1.*
|  |  |  |  `--php >=5.3.2
|  |  |  `--php ~5.6|~7.0
|  |  |--doctrine/inflector ~1.0
|  |  |  `--php >=5.3.2
|  |  |--knplabs/knp-menu >=1.1.0,<3.0.0
|  |  |  `--php >=5.3.0
|  |  |--knplabs/knp-menu-bundle >=1.1.0,<3.0.0
|  |  |  |--knplabs/knp-menu ~2.2
|  |  |  |  `--php >=5.3.0
|  |  |  `--symfony/framework-bundle ~2.3|~3.0
|  |  |--sensio/generator-bundle ~2.3
|  |  |  |--symfony/console ~2.5
|  |  |  `--symfony/framework-bundle ~2.2
|  |  |--sonata-project/block-bundle ~2.2,>=2.2.7,<2.3
|  |  |  |--doctrine/common ~2.3
|  |  |  |  |--doctrine/annotations 1.*
|  |  |  |  |  |--doctrine/lexer 1.*
|  |  |  |  |  |  `--php >=5.3.2
|  |  |  |  |  `--php ^5.6 || ^7.0
|  |  |  |  |--doctrine/cache 1.*
|  |  |  |  |  `--php ~5.5|~7.0
|  |  |  |  |--doctrine/collections 1.*
|  |  |  |  |  `--php ^5.6 || ^7.0
|  |  |  |  |--doctrine/inflector 1.*
|  |  |  |  |  `--php >=5.3.2
|  |  |  |  |--doctrine/lexer 1.*
|  |  |  |  |  `--php >=5.3.2
|  |  |  |  `--php ~5.6|~7.0
|  |  |  |--sonata-project/cache ~1.0
|  |  |  |--sonata-project/core-bundle ^2.2.1
|  |  |  |  |--cocur/slugify ~1.4|~2.0
|  |  |  |  |  `--php >=5.5.9
|  |  |  |  |--symfony/config ~2.3|~3.0
|  |  |  |  |--symfony/form ~2.3|~3.0
|  |  |  |  |--symfony/http-foundation ~2.3|~3.0
|  |  |  |  |--symfony/property-access ~2.3|~3.0
|  |  |  |  |--symfony/translation ~2.3|~3.0
|  |  |  |  |--symfony/validator ~2.3|~3.0
|  |  |  |  `--twig/twig ~1.23
|  |  |  |     `--php >=5.2.7
|  |  |  |--symfony/form ~2.2
|  |  |  `--symfony/http-kernel ~2.2
|  |  |--sonata-project/core-bundle ^2.2.1
|  |  |  |--cocur/slugify ~1.4|~2.0
|  |  |  |  `--php >=5.5.9
|  |  |  |--symfony/config ~2.3|~3.0
|  |  |  |--symfony/form ~2.3|~3.0
|  |  |  |--symfony/http-foundation ~2.3|~3.0
|  |  |  |--symfony/property-access ~2.3|~3.0
|  |  |  |--symfony/translation ~2.3|~3.0
|  |  |  |--symfony/validator ~2.3|~3.0
|  |  |  `--twig/twig ~1.23
|  |  |     `--php >=5.2.7
|  |  |--sonata-project/exporter ~1.0
|  |  |  `--php ^5.3 || ^7.0
|  |  |--symfony/class-loader ~2.3
|  |  |--symfony/config ~2.3
|  |  |--symfony/console ~2.3
|  |  |--symfony/expression-language ~2.4
|  |  |--symfony/form ~2.3
|  |  |--symfony/http-foundation ~2.3
|  |  |--symfony/property-access ~2.3
|  |  |--symfony/routing ~2.3
|  |  |--symfony/security-bundle ~2.3
|  |  |--symfony/twig-bridge ~2.3
|  |  |--symfony/validator ~2.3
|  |  |--twig/extensions ~1.0
|  |  |  `--twig/twig ~1.20|~2.0
|  |  |     `--php >=5.2.7
|  |  `--twig/twig ~1.15
|  |     `--php >=5.2.7
|  |--sonata-project/exporter ~1.3,>=1.3.1
|  |  `--php ^5.3 || ^7.0
|  |--symfony/console ~2.3
|  |--symfony/doctrine-bridge ~2.2
|  |--symfony/form ~2.3
|  |--symfony/framework-bundle ~2.2
|  `--symfony/security ~2.3
|--sonata-project/media-bundle ~2.3
|  |--friendsofsymfony/rest-bundle ~1.1
|  |  |--doctrine/inflector ~1.0
|  |  |  `--php >=5.3.2
|  |  |--php ^5.3.9|~7.0
|  |  |--psr/log ~1.0
|  |  |  `--php >=5.3.0
|  |  |--symfony/framework-bundle ~2.3|~3.0
|  |  |--symfony/http-kernel ^2.3.24|~3.0
|  |  |--willdurand/jsonp-callback-validator ~1.0
|  |  |  `--php >=5.3.0
|  |  `--willdurand/negotiation ~1.2
|  |     `--php >=5.3.0
|  |--imagine/imagine ~0.3
|  |  `--php >=5.3.2
|  |--jms/serializer-bundle ~0.11|~1.0
|  |  |--jms/serializer ~0.11
|  |  |  |--doctrine/annotations 1.*
|  |  |  |  |--doctrine/lexer 1.*
|  |  |  |  |  `--php >=5.3.2
|  |  |  |  `--php ^5.6 || ^7.0
|  |  |  |--jms/metadata ~1.1
|  |  |  |  `--php >=5.3.0
|  |  |  |--jms/parser-lib 1.*
|  |  |  |  `--phpoption/phpoption >=0.9,<2.0-dev
|  |  |  |     `--php >=5.3.0
|  |  |  |--php >=5.3.2
|  |  |  `--phpcollection/phpcollection ~0.1
|  |  |     `--phpoption/phpoption 1.*
|  |  |        `--php >=5.3.0
|  |  |--php >=5.3.2
|  |  `--symfony/framework-bundle ~2.1
|  |--knplabs/gaufrette >=0.1.6
|  |  `--php >=5.4
|  |--kriswallsmith/buzz ~0.1
|  |  `--php >=5.3.0
|  |--nelmio/api-doc-bundle ~2.4
|  |  |--michelf/php-markdown ~1.4
|  |  |  `--php >=5.3.0
|  |  |--php >=5.4
|  |  |--symfony/console ~2.3|~3.0
|  |  |--symfony/framework-bundle ~2.3|~3.0
|  |  `--symfony/twig-bundle ~2.3|~3.0
|  |--sonata-project/core-bundle ~2.3
|  |  |--cocur/slugify ~1.4|~2.0
|  |  |  `--php >=5.5.9
|  |  |--symfony/config ~2.3|~3.0
|  |  |--symfony/form ~2.3|~3.0
|  |  |--symfony/http-foundation ~2.3|~3.0
|  |  |--symfony/property-access ~2.3|~3.0
|  |  |--symfony/translation ~2.3|~3.0
|  |  |--symfony/validator ~2.3|~3.0
|  |  `--twig/twig ~1.23
|  |     `--php >=5.2.7
|  |--sonata-project/doctrine-extensions ~1.0
|  |  |--doctrine/dbal ~2.2
|  |  |  |--doctrine/common >=2.4,<2.8-dev
|  |  |  |  |--doctrine/annotations 1.*
|  |  |  |  |  |--doctrine/lexer 1.*
|  |  |  |  |  |  `--php >=5.3.2
|  |  |  |  |  `--php ^5.6 || ^7.0
|  |  |  |  |--doctrine/cache 1.*
|  |  |  |  |  `--php ~5.5|~7.0
|  |  |  |  |--doctrine/collections 1.*
|  |  |  |  |  `--php ^5.6 || ^7.0
|  |  |  |  |--doctrine/inflector 1.*
|  |  |  |  |  `--php >=5.3.2
|  |  |  |  |--doctrine/lexer 1.*
|  |  |  |  |  `--php >=5.3.2
|  |  |  |  `--php ~5.6|~7.0
|  |  |  `--php >=5.3.2
|  |  `--php >=5.3.2
|  |--sonata-project/easy-extends-bundle ~2.1
|  |  |--php ^5.3.2 || ^7.0
|  |  |--symfony/console ^2.1 || ^3.0
|  |  |--symfony/finder ^2.1 || ^3.0
|  |  `--symfony/framework-bundle ^2.1 || ^3.0
|  |--sonata-project/intl-bundle ~2.2
|  |  |--php ^5.3 || ^7.0
|  |  |--symfony/dependency-injection ^2.2 || ^3.0
|  |  |--symfony/http-kernel ^2.2 || ^3.0
|  |  |--symfony/intl ^2.3.21 || ^3.0
|  |  |--symfony/templating ^2.2 || ^3.0
|  |  `--twig/twig ^1.12 || ^2.0
|  |     `--php >=5.2.7
|  |--sonata-project/notification-bundle ~2.2
|  |  |--sonata-project/core-bundle ^2.3.10
|  |  |  |--cocur/slugify ~1.4|~2.0
|  |  |  |  `--php >=5.5.9
|  |  |  |--symfony/config ~2.3|~3.0
|  |  |  |--symfony/form ~2.3|~3.0
|  |  |  |--symfony/http-foundation ~2.3|~3.0
|  |  |  |--symfony/property-access ~2.3|~3.0
|  |  |  |--symfony/translation ~2.3|~3.0
|  |  |  |--symfony/validator ~2.3|~3.0
|  |  |  `--twig/twig ~1.23
|  |  |     `--php >=5.2.7
|  |  |--sonata-project/datagrid-bundle ~2.2
|  |  |  |--php ^5.3 || ^7.0
|  |  |  |--symfony/dependency-injection ^2.3 || ^3.0
|  |  |  `--symfony/form ^2.3 || ^3.0
|  |  |--sonata-project/doctrine-extensions ~1.0
|  |  |  |--doctrine/dbal ~2.2
|  |  |  |  |--doctrine/common >=2.4,<2.8-dev
|  |  |  |  |  |--doctrine/annotations 1.*
|  |  |  |  |  |  |--doctrine/lexer 1.*
|  |  |  |  |  |  |  `--php >=5.3.2
|  |  |  |  |  |  `--php ^5.6 || ^7.0
|  |  |  |  |  |--doctrine/cache 1.*
|  |  |  |  |  |  `--php ~5.5|~7.0
|  |  |  |  |  |--doctrine/collections 1.*
|  |  |  |  |  |  `--php ^5.6 || ^7.0
|  |  |  |  |  |--doctrine/inflector 1.*
|  |  |  |  |  |  `--php >=5.3.2
|  |  |  |  |  |--doctrine/lexer 1.*
|  |  |  |  |  |  `--php >=5.3.2
|  |  |  |  |  `--php ~5.6|~7.0
|  |  |  |  `--php >=5.3.2
|  |  |  `--php >=5.3.2
|  |  |--sonata-project/easy-extends-bundle ~2.1
|  |  |  |--php ^5.3.2 || ^7.0
|  |  |  |--symfony/console ^2.1 || ^3.0
|  |  |  |--symfony/finder ^2.1 || ^3.0
|  |  |  `--symfony/framework-bundle ^2.1 || ^3.0
|  |  |--symfony/framework-bundle ~2.3|~3.0
|  |  `--zendframework/zenddiagnostics ~1.0
|  |     `--php >=5.3.3
|  `--symfony/symfony ~2.3
|     |--doctrine/common ~2.4
|     |  |--doctrine/annotations 1.*
|     |  |  |--doctrine/lexer 1.*
|     |  |  |  `--php >=5.3.2
|     |  |  `--php ^5.6 || ^7.0
|     |  |--doctrine/cache 1.*
|     |  |  `--php ~5.5|~7.0
|     |  |--doctrine/collections 1.*
|     |  |  `--php ^5.6 || ^7.0
|     |  |--doctrine/inflector 1.*
|     |  |  `--php >=5.3.2
|     |  |--doctrine/lexer 1.*
|     |  |  `--php >=5.3.2
|     |  `--php ~5.6|~7.0
|     |--php >=5.3.9
|     |--psr/log ~1.0
|     |  `--php >=5.3.0
|     |--symfony/polyfill-apcu ~1.1
|     |  `--php >=5.3.3
|     |--symfony/polyfill-intl-icu ~1.0
|     |  |--php >=5.3.3
|     |  `--symfony/intl ~2.3|~3.0
|     |--symfony/polyfill-mbstring ~1.0
|     |  `--php >=5.3.3
|     |--symfony/polyfill-php54 ~1.0
|     |  `--php >=5.3.3
|     |--symfony/polyfill-php55 ~1.0
|     |  |--ircmaxell/password-compat ~1.0
|     |  `--php >=5.3.3
|     |--symfony/polyfill-php56 ~1.0
|     |  |--php >=5.3.3
|     |  `--symfony/polyfill-util ~1.0
|     |     `--php >=5.3.3
|     |--symfony/polyfill-php70 ~1.0
|     |  |--paragonie/random_compat ~1.0|~2.0
|     |  |  `--php >=5.2.0
|     |  `--php >=5.3.3
|     |--symfony/polyfill-util ~1.0
|     |  `--php >=5.3.3
|     |--symfony/security-acl ~2.7|~3.0.0
|     |  |--php >=5.5.9
|     |  `--symfony/security-core ~2.8|~3.0
|     `--twig/twig ~1.28|~2.0
|        `--php >=5.2.7
|--stof/doctrine-extensions-bundle ~1.1@dev
|  |--gedmo/doctrine-extensions ^2.3.1
|  |  |--behat/transliterator ~1.0
|  |  |  `--php >=5.3.3
|  |  |--doctrine/common ~2.4
|  |  |  |--doctrine/annotations 1.*
|  |  |  |  |--doctrine/lexer 1.*
|  |  |  |  |  `--php >=5.3.2
|  |  |  |  `--php ^5.6 || ^7.0
|  |  |  |--doctrine/cache 1.*
|  |  |  |  `--php ~5.5|~7.0
|  |  |  |--doctrine/collections 1.*
|  |  |  |  `--php ^5.6 || ^7.0
|  |  |  |--doctrine/inflector 1.*
|  |  |  |  `--php >=5.3.2
|  |  |  |--doctrine/lexer 1.*
|  |  |  |  `--php >=5.3.2
|  |  |  `--php ~5.6|~7.0
|  |  `--php >=5.3.2
|  |--php >=5.3.2
|  `--symfony/framework-bundle ~2.1|~3.0
|--symfony/assetic-bundle ~2.3
|  |--kriswallsmith/assetic ~1.4
|  |  |--php >=5.3.1
|  |  `--symfony/process ~2.1|~3.0
|  |--php >=5.3.0
|  |--symfony/console ~2.3|~3.0
|  |--symfony/dependency-injection ~2.3|~3.0
|  |--symfony/framework-bundle ~2.3|~3.0
|  `--symfony/yaml ~2.3|~3.0
|--symfony/symfony >=2.6
|  |--doctrine/common ~2.4
|  |  |--doctrine/annotations 1.*
|  |  |  |--doctrine/lexer 1.*
|  |  |  |  `--php >=5.3.2
|  |  |  `--php ^5.6 || ^7.0
|  |  |--doctrine/cache 1.*
|  |  |  `--php ~5.5|~7.0
|  |  |--doctrine/collections 1.*
|  |  |  `--php ^5.6 || ^7.0
|  |  |--doctrine/inflector 1.*
|  |  |  `--php >=5.3.2
|  |  |--doctrine/lexer 1.*
|  |  |  `--php >=5.3.2
|  |  `--php ~5.6|~7.0
|  |--php >=5.3.9
|  |--psr/log ~1.0
|  |  `--php >=5.3.0
|  |--symfony/polyfill-apcu ~1.1
|  |  `--php >=5.3.3
|  |--symfony/polyfill-intl-icu ~1.0
|  |  |--php >=5.3.3
|  |  `--symfony/intl ~2.3|~3.0
|  |--symfony/polyfill-mbstring ~1.0
|  |  `--php >=5.3.3
|  |--symfony/polyfill-php54 ~1.0
|  |  `--php >=5.3.3
|  |--symfony/polyfill-php55 ~1.0
|  |  |--ircmaxell/password-compat ~1.0
|  |  `--php >=5.3.3
|  |--symfony/polyfill-php56 ~1.0
|  |  |--php >=5.3.3
|  |  `--symfony/polyfill-util ~1.0
|  |     `--php >=5.3.3
|  |--symfony/polyfill-php70 ~1.0
|  |  |--paragonie/random_compat ~1.0|~2.0
|  |  |  `--php >=5.2.0
|  |  `--php >=5.3.3
|  |--symfony/polyfill-util ~1.0
|  |  `--php >=5.3.3
|  |--symfony/security-acl ~2.7|~3.0.0
|  |  |--php >=5.5.9
|  |  `--symfony/security-core ~2.8|~3.0
|  `--twig/twig ~1.28|~2.0
|     `--php >=5.2.7
`--twig/extensions ~1.0
   `--twig/twig ~1.20|~2.0
      `--php >=5.2.7

As you can see, the problem is ed/blog-bundle v1.0.5 > sonata-project/doctrine-orm-admin-bundle ^2.3 > sonata-project/admin-bundle ~2.3@dev > sonata-project/block-bundle ~2.2,>=2.2.7,<2.3 > sonata-project/core-bundle ^2.2.1 > twig/twig ~1.23.