在yii2中使用uploadify过程中发现的问题，网上g%b没发现解决办法，有的说psr缘故，求解？
还有composer安装不上。所以只能git checkout,

composer提示：

 Your requirements could not be resolved to an installable set of packages.

  Problem 1
    - The requested package prawee/yii2-uploadify could not be found in any vers
ion, there may be a typo in the package name.
  Problem 2
    - The requested package yrssoft/yii2-kindeditor could not be found in any ve
rsion, there may be a typo in the package name.

求解