Yii2 更新最新版本出现问题！ [ 2.0 版本 ]

composer.json配置

"repositories": {
    "0": {
        "type": "composer",
        "url": "https://asset-packagist.org"
    },
    "packagist": {
        "type": "composer",
        "url": "https://mirrors.aliyun.com/composer/"
    }
}