Your requirements could not be resolved to an installable set of packages.
Problem 1 - The requested package mediawiki/bootstrap could not be found in any version, there may be a typo in the package name.
Your requirements could not be resolved to an installable set of packages.
Problem 1 - The requested package mediawiki/bootstrap could not be found in any version, there may be a typo in the package name.
Could be that you need to allow composer to install dev packages. See https://www.mediawiki.org/wiki/Skin:Chameleon#Installation (item 3).
I believe this is how the "composer.json" file has to be set up:
{
"require": {
"php": ">=5.3.2",
"mediawiki/bootstrap": "1.*@dev"
},
"minimum-stability" : "dev",
"prefer-stable" : true
}
Hope that this is it. By the way, neither MediaWiki (alpha) nor Cameleon provide a "composer-example.json" file.