Why is jui not installed?

Question

Yii

Can't install jui gives this
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
- yiisoft/yii2-jui 2.0.5 requires bower-asset/jquery-ui 1.11.*@stable -> no matching package found.
- yiisoft/yii2-jui 2.0.4 requires bower-asset/jquery-ui 1.11.*@stable -> no matching package found.
- yiisoft/yii2-jui 2.0.3 requires bower-asset/jquery-ui 1.11.*@stable -> no matching package found.
- yiisoft/yii2-jui 2.0.2 requires bower-asset/jquery-ui 1.11.*@stable -> no matching package found.
- yiisoft/yii2-jui 2.0.1 requires bower-asset/jquery-ui 1.11.*@stable -> no matching package found.
- yiisoft/yii2-jui 2.0.0 requires bower-asset/jquery-ui 1.11.*@stable -> no matching package found.
- Installation request for yiisoft/yii2-jui ~2.0.0 -> satisfiable by yiisoft/yii2-jui[2.0.0, 2.0.1, 2.0.2, 2.0.3, 2.0.4, 2.0.5].
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 for more details.
Read for further common problems.
my composer.json

{
    "name": "yiisoft/yii2-app-basic",
    "description": "Yii 2 Basic Project Template",
    "keywords": ["yii2", "framework", "basic", "project template"],
    "homepage": "http://www.yiiframework.com/",
    "type": "project",
    "license": "BSD-3-Clause",
    "support": {
        "issues": "https://github.com/yiisoft/yii2/issues?state=open",
        "forum": "http://www.yiiframework.com/forum/",
        "wiki": "http://www.yiiframework.com/wiki/",
        "irc": "irc://irc.freenode.net/yii",
        "source": "https://github.com/yiisoft/yii2"
    },
    "minimum-stability": "stable",
    "require": {
        "php": ">=5.4.0",
        "yiisoft/yii2": ">=2.0.5",
        "yiisoft/yii2-bootstrap": "*",
        "yiisoft/yii2-swiftmailer": "*"
    },
    "require-dev": {
        "yiisoft/yii2-debug": "*",
        "yiisoft/yii2-gii": "*",
        "yiisoft/yii2-faker": "*",
        "yiisoft/yii2-jui": "~2.0.0"
    },
    "config": {
        "process-timeout": 1800
    },
    "scripts": {
        "post-create-project-cmd": [
            "yii\\composer\\Installer::postCreateProject"
        ]
    },
    "extra": {
        "yii\\composer\\Installer::postCreateProject": {
            "setPermission": [
                {
                    "runtime": "0777",
                    "web/assets": "0777",
                    "yii": "0755"
                }
            ],
            "generateCookieValidationKey": [
                "config/web.php"
            ]
        },
        "asset-installer-paths": {
            "npm-asset-library": "vendor/npm",
            "bower-asset-library": "vendor/bower"
        }
    }
}

Answer 1

Decided by this team

composer global require "fxp/composer-asset-plugin:~1.0"