installation failed in laravel 5.6

[rinkesh-prajapat]

Error message:- Installation failed, reverting ./composer.json to its original content.

[chrisbaltazar]

I have the same issue with message "Your requirements could not be resolved to an installable set of packages"

[eleazarbr]

It also doesn't work in Laravel 5.4

[joaodos3v]

+1

[geo903]

+1

[noragalvin]

+1

[noragalvin]

It also doesn't work in Laravel 5.5