Under S3 bucket selection the following appears:
“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: AWS SDK for PHP 3.x. If you are unable to load a specific API version, then you may need to update your copy of the SDK.”