Unable to deploy application version: Environment named is in an "invalid state" for this operation. Must be Ready.

Hi there,

This most likely indicates that the underlying cloudformation stack for your Elastic Beanstalk environment is currently in a non-updatable state such as UPDATE_ROLLBACK_FAILED due to some previous failed update or rollback operation on the environment.

You can verify this by going to the AWS Cloudformation console and checking the status of the cloudformation stack corresponding to the beanstalk environment. (The stack name would have the beanstalk environment ID).

If this is indeed the case, then you need to follow the below steps to fix the environment state,

1. Manually perform a continue update rollback operation on the cloudformation stack by skipping the failed resource. More details in our documentation here: https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-continueupdaterollback.html
2. Once Step 1 is complete, open a technical support case with AWS under the Elastic Beanstalk service in order to get the environment status updated. More details here: https://docs.aws.amazon.com/awssupport/latest/user/case-management.html

Hope this helps. Please feel free to reply if you have any further questions/concerns.