Composer can't find package

Can you show the composer.json file that you have updated?

https://github.com/tuurbo/spreedly/blob/master/composer.json

{
    "name": "tuurbo/spreedly",
    "description": "Spreedly API",
    "keywords": ["spreedly", "laravel", "credit card", "payment"],
    "license": "MIT",
    "authors": [
        {
            "name": "Daniel Fraser"
        }
    ],
    "require": {
        "php": ">=5.4.0",
        "guzzlehttp/guzzle": "~5.2"
    },
    "require-dev": {
        "phpspec/phpspec": "~2.2"
    },
    "autoload": {
        "psr-4": {
            "Tuurbo\\Spreedly\\": "src/"
        }
    }
}

Can you try changing

"guzzlehttp/guzzle": "~5.2"

to

"guzzlehttp/guzzle": "~5.2@stable"

Hope that helps.

I pushed a branch called guzzle and ran composer require tuurbo/spreedly:dev-guzzle@dev and im getting

Problem 1
    - Installation request for tuurbo/spreedly dev-guzzle@dev -> satisfiable by tuurbo/spreedly[dev-guzzle].
    - tuurbo/spreedly dev-guzzle requires guzzlehttp/guzzle ~5.2@stable -> no matching package found.

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://groups.google.com/d/topic/composer-dev/_g3ASeIFlrc/discussion> for more details.

Packagist lists the latest at 6.0.2. I set the version to @stable. Also are you running PHP >= 5.5 ?

      "guzzlehttp/guzzle": "@stable",

Jamess-MacBook-Pro:laravel5 jimm$ composer update
Loading composer repositories with package information
Updating dependencies (including require-dev)
  - Installing guzzlehttp/promises (1.0.0)
    Downloading: 100%

  - Installing psr/http-message (1.0)
    Downloading: 100%

  - Installing guzzlehttp/psr7 (1.0.0)
    Downloading: 100%

  - Installing guzzlehttp/guzzle (6.0.1)
    Downloading: 100%

Writing lock file
Generating autoload files
A new helper file was written to _ide_helper.php
Generating optimized class loader
Compiling common classes

Sorry 6.0.1

I was trying 5.2 because it didnt require php 5.5, but i'll give guzzle 6 a shot

@tuurbo its requires 5.5 or greater.

@tuurbo its 5.0.2 ?? Yes?

I just tried 6.0 and still get the same error in my laravel project https://github.com/tuurbo/spreedly/blob/guzzle/composer.json

So i just created a empty folder called /test and ran composer require tuurbo/spreedly:dev-guzzle@dev and it ran successfully... So that must mean my laravel project is the issue, not the tuurbo/spreedly package?

@tuurbo what Laravel has to do with you creating package that requires some other library?

Not sure, but i can composer require the package from outside of my laravel project without an issue

I'm assuming this might be the answer?

The package is not available in a stable-enough version according to your minimum-stability setting

Loading composer repositories with package information
Updating dependencies (including require-dev)
  - Removing guzzlehttp/psr7 (1.0.0)
  - Removing psr/http-message (1.0)
  - Removing guzzlehttp/promises (1.0.0)
  - Installing react/promise (v2.2.0)
    Downloading: 100%

  - Installing guzzlehttp/streams (3.0.0)
    Downloading: 100%

  - Installing guzzlehttp/ringphp (1.1.0)
    Downloading: 100%

  - Removing guzzlehttp/guzzle (6.0.1)
  - Installing guzzlehttp/guzzle (5.3.0)
    Downloading: 100%

  - Installing tuurbo/spreedly (1.0.0)

      "guzzlehttp/guzzle": "@stable",
      "tuurbo/spreedly": "1.0.0",