http://j-caw.co.jp/blog/?p=1100

上記のURLを参考にして、S3へのファイルアップロードを構築しようと考えていますが、以下のようなエラーが出てしまいます。
これは何が原因でしょうか？？

Fatal error: Uncaught exception 'InvalidArgumentException' with message 'Missing required client configuration options: version: (string) A "version" configuration value is required. Specifying a version constraint ensures that your code will not be affected by a breaking change made to the service. For example, when using Amazon S3, you can lock your API version to "2006-03-01". Your build of the SDK has the following version(s) of "s3": * "2006-03-01" You may provide "latest" to the "version" configuration value to utilize the most recent available API version that your client's API provider can find. Note: Using 'latest' in a production application is not recommended. A list of available API versions can be found on each client's API documentation page: http://docs.aws.amazon.com/aws-sdk-php/v3/api/index.html. If you are unable to load a specific API version, then you may need to update your copy of the SDK.' in phar:///home/for815/www/admin/s3/aws.phar/Aws/ClientResolver.php:328 Sta in phar:///home/for815/www/admin/s3/aws.phar/Aws/ClientResolver.php on line 328