guzzle調用失敗-缺乏guzzle

用composer安裝了，可是目前爲止還有問題。開發環境是 WAMP PHP5.4.12. 已經打開PHP.ini 的SSL擴展，如今仍是提示缺乏 curl-ca-bundle.cr

報錯

No system CA bundle could be found in any of the the common system locations.
PHP versions earlier than 5.6 are not properly configured to use the system's
CA bundle by default. In order to verify peer certificates, you will need to
supply the path on disk to a certificate bundle to the 'verify' request
option: http://docs.guzzlephp.org/en/latest/clients.html#verify. If you do not
need a specific certificate bundle, then Mozilla provides a commonly used CA
bundle which can be downloaded here (provided by the maintainer of cURL):
https://raw.githubusercontent.com/bagder/ca-bundle/master/ca-bundle.crt. Once
you have a CA bundle available on disk, you can set the 'openssl.cafile' PHP
ini setting to point to the path to the file, allowing you to omit the 'verify'
request option. See http://curl.haxx.se/docs/sslcerts.html for more
information.

根據這個地址 https://github.com/guzzle/RingPHP/blob/master/src/Client/ClientUtils.php  提示是缺乏指定的文件

在這個地址 https://raw.githubusercontent.com/bagder/ca-bundle/master/ca-bundle.crt 下載對應的文件 curl-ca-bundle.crt 

問題解決