执行composer install遇到错误:Your requirements could not be resolved to an installable set of packages. 这是因为不匹配composer.json要求的版本。
完整错误如下:
Loading composer repositories with package informationInstalling dependencies (including require-dev) from lock fileYour requirements could not be resolved to an installable set of packages. Problem 1 - Installation request for arcanedev/support 3.17.0 -> satisfiable by arcanedev/support[3.17.0]. - arcanedev/support 3.17.0 requires php >=5.6 -> your PHP version (5.5.12) does not satisfy that requirement. Problem 2 - Installation request for laravelista/ekko 1.2.3 -> satisfiable by laravelista/ekko[1.2.3]. - laravelista/ekko 1.2.3 requires php >=5.6.0 -> your PHP version (5.5.12) does not satisfy that requirement. Problem 3 - Installation request for league/flysystem 1.1.x-dev -> satisfiable by league/flysystem[1.1.x-dev]. - league/flysystem 1.1.x-dev requires php >=5.6.0 -> your PHP version (5.5.12) does not satisfy that requirement. Problem 4 - Installation request for league/flysystem dev-master -> satisfiable by league/flysystem[dev-master]. - league/flysystem dev-master requires php >=5.6.0 -> your PHP version (5.5.12) does not satisfy that requirement. Problem 5 - league/flysystem 1.1.x-dev requires php >=5.6.0 -> your PHP version (5.5.12) does not satisfy that requirement. - laravel/framework 5.2.x-dev requires league/flysystem ~1.0 -> satisfiable by league/flysystem[1.1.x-dev]. - Installation request for laravel/framework 5.2.x-dev -> satisfiable by laravel/framework[5.2.x-dev].