composer install 时遇到 Composer\Downloader\TransportException ...

安装错误

[Composer\Downloader\TransportException]
Invalid credentials for ‘https://packagist.phpcomposer.com/p/provider-2016%24ae19026fd0d5a3d5733e5a46202305c96ff2ae
1ccd7988bb88c5fa2a7e490f7d.json‘, aborting.

原因:  后来发现可能是composer文件中已经有一个 包來源的問題，， 也可能是沒有更新composer composer self-update  

參考文中說這個檢測： composer diagnose 才想起要更新 composer self-update .

"repositories": [
    {
        "type": "composer",
        "url": "https://asset-packagist.org"
    }
]

參考：
https://segmentfault.com/q/1010000006723443