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

[hakhsin]

Hi, when I tried to install I got this error:

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

  Problem 1
    - Installation request for pragmarx/laravelcs ^0.1.0 -> satisfiable by pragmarx/laravelcs[v0.1.0].
    - pragmarx/laravelcs v0.1.0 requires squizlabs/php_codesniffer ~2.0 -> satisfiable by squizlabs/php_codesniffer[2.0.0, 2.0.0RC1, 2.0.0RC2, 2.0.0RC3, 2.0.0RC4, 2.0.0a1, 2.0.0a2, 2.1.0, 2.2.0, 2.3.0, 2.3.1, 2.3.2, 2.3.3, 2.3.4, 2.4.0, 2.5.0, 2.5.1, 2.6.0, 2.6.1, 2.6.2, 2.7.0, 2.7.1, 2.8.0, 2.8.1, 2.9.0, 2.9.1, 2.9.2, 2.9.x-dev] but these conflict with your requirements or minimum-stability.

Installation failed, reverting ./composer.json to its original content.

Now, what do I do?