[HELP] Installation fails on laravel 7 with existing guzzle7 requirement

[ppshobi]

When I run the install command from the repository readme I am getting the following

composer require graham-campbell/github:^9.3 php-http/guzzle6-adapter:^2.0
1/3: http://repo.packagist.org/p/provider-latest$455a95a2fc5f120dbe841f392a72116b074f9a14678c63f88d27c0ad5fe4a391.json
2/3: http://repo.packagist.org/p/provider-2020-04$72fecf7d712a06303f79b260a5535e5e7db7142551d393907c5b9e5b4adff50e.json
3/3: http://repo.packagist.org/p/provider-2020-07$4998b6e616286393474ddd955036046a14c58cda30bd34b581b8d2ea3f04c7c3.json
Finished: success: 3, skipped: 0, failure: 0, total: 3
./composer.json has been updated
Loading composer repositories with package information
Updating dependencies (including require-dev)
Your requirements could not be resolved to an installable set of packages.

Problem 1
- Installation request for php-http/guzzle6-adapter ^2.0 -> satisfiable by php-http/guzzle6-adapter[2.x-dev, v2.0.0, v2.0.1].
- Can only install one of: guzzlehttp/guzzle[6.5.x-dev, 7.0.1].
- Can only install one of: guzzlehttp/guzzle[7.0.1, 6.5.x-dev].
- Can only install one of: guzzlehttp/guzzle[6.5.x-dev, 7.0.1].
- Conclusion: install guzzlehttp/guzzle 6.5.x-dev
- Installation request for guzzlehttp/guzzle (locked at 7.0.1, required as ^7.0) -> satisfiable by guzzlehttp/guzzle[7.0.1].

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

This is the error message I am receiving at the end with composer require graham-campbell/github -vvv flag passed.

Dependency resolution completed in 0.001 seconds
Reading /Users/shobi/.composer/cache/repo/https---repo.packagist.org/provider-php-http$client-implementation.json from cache
Your requirements could not be resolved to an installable set of packages.

Problem 1
- graham-campbell/github 9.3.x-dev requires knplabs/github-api 2.15.* -> satisfiable by knplabs/github-api[v2.15.0].
- graham-campbell/github v9.3.0 requires knplabs/github-api 2.15.* -> satisfiable by knplabs/github-api[v2.15.0].
- graham-campbell/github v9.3.1 requires knplabs/github-api 2.15.* -> satisfiable by knplabs/github-api[v2.15.0].
- knplabs/github-api v2.15.0 requires php-http/client-implementation ^1.0 -> no matching package found.
- Installation request for graham-campbell/github ^9.3 -> satisfiable by graham-campbell/github[9.3.x-dev, v9.3.0, v9.3.1].

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://getcomposer.org/doc/04-schema.md#minimum-stability for more details.
• It's a private package and you forgot to add a custom repository to find it

Read https://getcomposer.org/doc/articles/troubleshooting.md for further common problems.

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

my composer.json require section

"require": {
        "php": "^7.4",
        "fideloper/proxy": "^4.2",
        "fruitcake/laravel-cors": "^2.0",
        "graham-campbell/digitalocean": "^7.0",
        "guzzlehttp/guzzle": "^7.0",
        "laravel/framework": "^7.0",
        "laravel/tinker": "^2.0",
        "laravel/ui": "^2.1",
        "livewire/livewire": "^1.3"
},

Any help on mitigating the issue will be greatly appreciated.

[ppshobi]

I guess the better option for now is to downgrade to guzzle6 and use the guzzle-6 adapter. I was able to do it actually

[GrahamCampbell]

Yes, this package doesn't currently support Guzzle 7. Version 10.0.0, when it is released, will support Guzzle 7, but it is not ready to even try yet (pending KnpLabs/php-github-api#910).

[GrahamCampbell]

I guess the better option for now is to downgrade to guzzle6 and use the guzzle-6 adapter. I was able to do it actually

Yes. To explain what's going on here: There is not a Guzzle 7 PHP-HTTP adapter, and there never will be (because those interfaces where replaced by PSR-17 and PSR-18). The next major version of the upstream package will be using PSR-17/18 factories (due to KnpLabs/php-github-api#885, KnpLabs/php-github-api#888, KnpLabs/php-github-api#910), and the 10.0 branch of this package is ready (9.3...10.0).

Once version 10.0.0 is tagged, you will be able to install it using the versions:

graham-campbell/github:^10.0 guzzlehttp/guzzle:^7.0 http-interop/http-factory-guzzle:^1.0

guzzlehttp/guzzle provides PSR-18 factories, and http-interop/http-factory-guzzle provides PSR-17 factories, both of them using guzzlehttp/psr7 for the PSR-7 implementation. In the future guzzlehttp/psr7will likely get the PSR-17 factories built-in to it, but for now, it doesn't have that, so you need that additional interop package.