The AWS CLI doesn't recognize simspaceweaver - AWS SimSpace Weaver

End of support notice: On May 20, 2026, AWS will end support for AWS SimSpace Weaver. After May 20, 2026, you will no longer be able to access the SimSpace Weaver console or SimSpace Weaver resources. For more information, see AWS SimSpace Weaver end of support.

The AWS CLI doesn't recognize simspaceweaver

If the AWS CLI gives you errors that suggest that it doesn't know about SimSpace Weaver, run the following command.

aws simspaceweaver help

If you get an error that starts with the following lines and lists all available choices then your AWS CLI might be an older version.

usage: aws [options] <command> <subcommand> [<subcommand> ...] [parameters]
To see help text, you can run:

  aws help
  aws <command> help
  aws <command> <subcommand> help

aws: error: argument command: Invalid choice, valid choices are:    

Run the following command to check the version of your AWS CLI.

aws --version

If the version number is earlier than 2.9.19 then you must update your AWS CLI. Note that the current version of the AWS CLI is later than 2.9.19.

To update your AWS CLI, see Install or update the latest version of the AWS CLI in the AWS Command Line Interface User Guide for Version 2.