hi, I also got a problem when running vokuro as same as Nguyen have...
I already try to use composer to load dependency, but I got error message below :
Loading composer repositories with package information
Installing dependencies (including require-dev) from lock file
Your requirements could not be resolved to an installable set of packages.
  Problem 1
    - The requested package php could not be found in any version, there may be a typo in the package name.
  Problem 2
    - The requested package php could not be found in any version, there may be a typo in the package name.
  Problem 3
    - Installation request for amazonwebservices/aws-sdk-for-php 1.6.2 -> satisfiable by amazonwebservices/aws-sdk-for-php[1.6.2].
    - amazonwebservices/aws-sdk-for-php 1.6.2 requires php >=5.2.0 -> no matching package found.
  Problem 4
    - Installation request for swiftmailer/swiftmailer v5.0.3 -> satisfiable by swiftmailer/swiftmailer[v5.0.3].
    - swiftmailer/swiftmailer v5.0.3 requires php >=5.2.4 -> no matching package  found.    
Potential causes:
 - A typo in the package name
 - The package is not available in a stable-enough version according to your minimum-stability setting
   see <https://groups.google.com/d/topic/composer-dev/_g3ASeIFlrc/discussion> for more details.
anyone, I need your help pls... :(