I was not able to install your bundle on symfony/framework-bundle: ~2.7.7 in Windows.

[gintares]

I was not able to install your bundle on symfony/framework-bundle: ~2.7.7 in Windows.
Composer version 1.0-dev, 2015-12-01 .

Finally, i would like to share the way i installed it, that you could correct your help about installation accordingly.

1. cmd>composer require "sed/route-exporter-bundle" : "dev-master"
   gives error: [InvalidArgumentException] Could not find package dev-master at any version for your minimum-stability (stable). Check the package spelling or your minimum-stability

2. cmd>composer require sed/route-exporter-bundle 'dev-master'
   gives error: [UnexpectedValueException] Could not parse version constraint 'dev-master': Invalid version string "'d ev-master'"

3. cmd>composer require sed/route-exporter-bundle "dev-master"
   finally installs!