Php 编写器未能解码响应：zlib_decode（）

我正在尝试安装crudkit.com。这是我的composer.json：

{
    "description" : "The CodeIgniter framework",
    "name" : "codeigniter/framework",
    "license": "MIT",
    "require": {
        "php": ">=5.2.4"
    },
    "require-dev": {
        "mikey179/vfsStream": "1.1.*"
    }

}

之后，我使用以下命令运行composer：

$ sudo php composer.phar install

但我犯了这样的错误：

Installing dependencies (including require-dev)
Failed to decode response: zlib_decode(): data error
Retrying with degraded mode, check https://getcomposer.org/doc/articles/troubleshooting.md#degraded-mode for more info

有人知道怎么解决吗

更新： 我试着对composer进行诊断，结果发现：

Checking composer.json: FAIL
The version field is present, it is recommended to leave it out if the package is published on Packagist.
Checking platform settings: FAIL
The OpenSSL library (0.9.8zc) used by PHP does not support TLSv1.2 or TLSv1.1.
If possible you should upgrade OpenSSL to version 1.0.1 or above.

---

尝试更新composer，如下所示

sudo编写器清除缓存

将此行添加到composer.json

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

然后

sudo编写器更新

---

在composer.json文件中写入给定的行，希望它能像对我一样帮助别人。 然后运行composer更新 “存储库”：[ { “类型”：“作曲家”， “url”：” }, {“packagist”：false} ]