Why can't I install a package despite Laravel version matching the package requirements?

Question

I am trying to install this package https://github.com/shawnsandy/img-fly on Laravel 6.5.2

According to their composer.json, they allow to use Laravel 6.* version :

"require": {
    "php": ">=7.0",
    "illuminate/support": "5.*|6.*",
    "league/glide-laravel": "1.*"
},

But on a fresh Laravel 6.5.2 version, I got this error :

 Problem 1
    - Installation request for shawnsandy/img-fly ^0.1.21 -> satisfiable by shawnsandy/img-fly[v0.1.21].
    - Conclusion: remove laravel/framework v6.6.1
    - Conclusion: don't install laravel/framework v6.6.1
    - shawnsandy/img-fly v0.1.21 requires illuminate/support 5.*

Is there anything I can do here ?

Answer 1

You are looking at the "master" branch, which might indeed have declared support for Laravel 6 .

But the latest tagged version is 1.21, which has not . If you check the package on Packagist, you'll see that's what you get .

If you are feeling brave and want to install pre-release software, you could require the dev-master` version, which has the Laravel support you want.

composer require shawnsandy/img-fly:dev-master