no matching dependency package

[pajooh]

in composer.json, i require

        "maatwebsite/excel": "dev-master"

and i get

$php composer.phar update
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 maatwebsite/excel dev-master -> satisfiable by maatwebsite/excel[dev-master].
    - maatwebsite/excel dev-master requires phpoffice/phpexcel dev-master -> 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.

Read <http://getcomposer.org/doc/articles/troubleshooting.md> for further common problems.

[mewben]

For now, I changed my composer.json to minimum-stability: 'dev'.

[MaatwebsiteSupport]

It's impossible to fix it, I'm almost completely certain it has to do with the original PHPExcel package of which (as the error states) no matching (stable) package can be found.

The only fix is to use minimum-stability: 'dev', which isn't a bad thing. A lot of the most popular Laravel packages only work with minimum-stability: 'dev'.