如何解决您的要求无法解析为可安装的软件包集

Question

从中下载代码 https://github.com/cmfcmf/OpenWeatherMap-PHP-Api

我遵循README file中提到的说明。我运行了以下命令。

composer require "cmfcmf/openweathermap-php-api"
Using version ^2.2 for cmfcmf/openweathermap-php-api
./composer.json has been updated
Loading composer repositories with package information
Updating dependencies (including require-dev)
Your requirements could not be resolved to an installable set of packages.

  

问题1    - 请求的包cmfcmf / openweathermap-php-api cmfcmf / openweathermap-php-api无法满足任何版本集（解析为1.0.0）[否]   版本集（解析为1.0.0）]但这些与您的版本冲突   要求或最小稳定性。

     

安装失败，将./composer.json恢复为原始版本   内容。

EDIT Composer.json文件。

https://github.com/cmfcmf/OpenWeatherMap-PHP-Api/blob/master/composer.json