无效的版本字符串“4.x.x”+ Laravel

Question

我正在尝试将“Asgardcms / Platform”软件包安装到Laravel 5.2。

我在安装此软件包时发现错误

[RuntimeException]                                                           
  Could not load package intervention/image in http://packagist.org: [Unexpec  
  tedValueException] Could not parse version constraint 4.x.x: Invalid versio  
  n string "4.x.x" 

 [UnexpectedValueException]                                                
  Could not parse version constraint 4.x.x: Invalid version string "4.x.x" 

我该如何解决这个问题？

Answer 1

运行Composer composer self-update它将解决您的问题