phly/http dependency error

[alexc-hollywood]

"require": {
    "egeloen/http-adapter": "dev-master as 0.7",
    "willdurand/geocoder": "^3.0",
    "kamranahmedse/php-geocode": "*",
    "geoip2/geoip2": "*",
    "league/geotools": "@stable"
},

Your requirements could not be resolved to an installable set of packages.

Problem 1
- Conclusion: remove custompackage/geo-lib dev-master
- egeloen/http-adapter 0.7.0 requires phly/http dev-header-case-sensitivity as 0.11.x-dev -> no matching package found.
- Conclusion: remove willdurand/geocoder v3.0.0-alpha2
- Conclusion: don't install willdurand/geocoder v3.0.0-alpha2
- Conclusion: don't install willdurand/geocoder v3.0.0-alpha1
- Conclusion: don't install willdurand/geocoder 3.1.x-dev
- Installation request for custompackage/geo-lib dev-master -> satisfiable by custompackage/geo-lib[dev-master].
- custompackage/geo-lib dev-master requires willdurand/geocoder ^3.0 -> satisfiable by willdurand/geocoder[v3.0.0-alpha2, 3.1.x-dev, v3.0.0, v3.0.0-alpha1, v3.0.0-alpha3].
- willdurand/geocoder v3.0.0-alpha3 requires egeloen/http-adapter 0.5.* -> satisfiable by egeloen/http-adapter[0.5.0].
- willdurand/geocoder v3.0.0 requires egeloen/http-adapter 0.7.* -> satisfiable by egeloen/http-adapter[0.7.0, 0.7.1].
- Can only install one of: egeloen/http-adapter[dev-master, 0.5.0].
- Can only install one of: egeloen/http-adapter[dev-master, 0.7.1].
- custompackage/geo-lib dev-master requires egeloen/http-adapter dev-master as 0.7 -> satisfiable by egeloen/http-adapter[dev-master].
- Conclusion: remove egeloen/http-adapter dev-master

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.