Having similar problems trying to install the advanced app using Composer (not tried the basic app).
Here is a screen dump: As you can see, the fxp/composer-asset-plugin has been installed, Composer has created the project, but is unable to find some of the packages.
Edited in the light of Stafano’s comment to say that this is a clean install.
C:\Users\Chris>composer require "fxp/composer-asset-plugin:1.0.0-beta3"
./composer.json has been created
Loading composer repositories with package information
Updating dependencies (including require-dev)
Writing lock file
Generating autoload files
C:\Users\Chris>mkdir Projects
C:\Users\Chris>cd projects
C:\Users\Chris\Projects>mkdir Yii
C:\Users\Chris\Projects>cd yii
C:\Users\Chris\Projects\Yii>composer create-project yiisoft/yii2-app-advanced 2.0.0
Installing yiisoft/yii2-app-advanced (2.0.0)
Created project in 2.0.0
Loading composer repositories with package information
Installing dependencies (including require-dev)
Your requirements could not be resolved to an installable set of packages.
Problem 1
- Installation request for yiisoft/yii2 * -> satisfiable by yiisoft/yii2[2.0.0].
- yiisoft/yii2 2.0.0 requires bower-asset/jquery 2.1.*@stable | 1.11.*@stable -> no matching package found.
Problem 2
- Installation request for yiisoft/yii2-bootstrap * -> satisfiable by yiisoft/yii2-bootstrap[2.0.0].
- yiisoft/yii2-bootstrap 2.0.0 requires bower-asset/bootstrap 3.2.* | 3.1.*-> no matching package found.
Problem 3
- Installation request for yiisoft/yii2-gii * -> satisfiable by yiisoft/yii2-gii[2.0.0].
- yiisoft/yii2-gii 2.0.0 requires bower-asset/typeahead.js 0.10.* -> no matching package found.
Problem 4
- yiisoft/yii2 2.0.0 requires bower-asset/jquery 2.1.*@stable | 1.11.*@stable -> no matching package found.
- yiisoft/yii2-faker 2.0.0 requires yiisoft/yii2 * -> satisfiable by yiisoft/yii2[2.0.0].
- Installation request for yiisoft/yii2-faker * -> satisfiable by yiisoft/yii2-faker[2.0.0].
Potential causes:
Read <http://getcomposer.org/doc/articles/troubleshooting.md> for further common problems.
C:\Users\Chris\Projects\Yii>composer diagnose
Checking platform settings: OK
Checking git settings: OK
Checking http connectivity: OK
Checking disk free space: OK
Checking composer version: OK
C:\Users\Chris\Projects\Yii>