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

[fmnmt27]

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

[PovilasKorop]

@fmnmt27 check your PHP and Laravel version. We support Laravel up to 5.5 now, planning to upgrade to 5.6 in upcoming week or two.

[igorsantos07]

I should mention it seems to be working fine so far with 5.6.