How do I resolve the "Configuration validation exception" error in Elastic Beanstalk?

Resolution

The Configuration validation exception error occurs for the following reasons:

• The configuration for an Amazon Machine Image (AMI) in the Elastic Beanstalk environment is incorrect.
• A custom AMI that's referenced in the environment is deleted from the account.

To resolve this error, complete the following steps:

1. Create a new custom AMI.
2. Install AWS Command Line Interface (AWS CLI) on your local machine.
3. To update the Elastic Beanstalk environment with the new AMI ID, run the update-environment command:

   aws elasticbeanstalk update-environment --environment-name env_name --option-settings Namespace=aws:autoscaling:launchconfiguration,OptionName=ImageId,Value=ami_id --region region_id

   Note: Replace env_name with your environment name, ami_id with your AMI ID, and region_id with your AWS Region.

Note: If you receive errors when you run AWS CLI commands, then see Troubleshoot AWS CLI errors. Also, make sure that you're using the most recent AWS CLI version.