AWS CLI option `source-url-type` causes error when starting Amplify deployment

Question

I'm trying to use the AWS CLI command shown at the bottom of [this documentation page](https://docs.aws.amazon.com/amplify/latest/userguide/update-website-deployed-from-s3.html):

```
aws amplify start-deployment --app-id  --branch-name  --source-url s3://amzn-s3-demo-website-bucket/prefix source-url-type BUCKET_PREFIX
```

I tried it and got the below error. I only corrected `source-url-type` to include the two dashes in front, but even if I don't, I still get the same error.

```
usage: aws [options]   [ ...] [parameters]
To see help text, you can run:

aws help
  aws  help
  aws   help

Unknown options: --source-url-type, BUCKET_PREFIX
```

The [CLI documentation online](https://awscli.amazonaws.com/v2/documentation/api/latest/reference/amplify/start-deployment.html) says this option exists, but reading the docs by running `aws amplify start-deployment`, I see no mention of this option. I even tried searching inside the git repo and found nothing.

How do I actually start a deployment from a “bucket prefix” using the CLI?

Riku_Kobayashi · Accepted Answer

Hello.

Looking at the AWS CLI change history below, it appears that "source-url-type" is an option added in version 2.18.7.  
Make sure the AWS CLI version you are using is 2.18.7 or higher.  
https://github.com/aws/aws-cli/blob/v2/CHANGELOG.rst  
> api-change:amplify: Added sourceUrlType field to StartDeployment request

![a](/media/postImages/original/IMKRVJaKPWQGiTP99ZPohNHA)

If you are using an older version, please update by following the steps in the document below.  
https://docs.aws.amazon.com/cli/latest/userguide/getting-started-install.html

re:Post Agent · Answer

The issue you're encountering is due to a formatting error in the command you're trying to use. The `--source-url-type` option is indeed a valid parameter for the `aws amplify start-deployment` command, but it needs to be specified correctly.

Here's the correct format for the command:

```
aws amplify start-deployment --app-id  --branch-name  --source-url s3://amzn-s3-demo-website-bucket/prefix --source-url-type BUCKET_PREFIX
```

The key differences are:

1. The `--source-url-type` should be a separate option, not part of the `--source-url` value.
2. `BUCKET_PREFIX` should be the value of the `--source-url-type` option, not a separate parameter.

Make sure you're using the latest version of the AWS CLI, as older versions might not support this option. You can check your AWS CLI version with `aws --version` and update if necessary.

If you're still encountering issues after correcting the command format, it's possible that your AWS CLI installation might need to be updated or there could be a discrepancy between the online documentation and your local CLI version. In such cases, you may want to consider updating your AWS CLI to the latest version or reaching out to AWS support for further assistance.

Remember to replace `` and `` with your actual Amplify app ID and branch name respectively when running the command.  
**Sources**  
[(Optional) Installing the AWS CLI - AWS Elemental MediaPackage](https://docs.aws.amazon.com/mediapackage/latest/ug/setting-up-install-cli.html)  
[AWS Amplify | Extensible Web & Mobile Apps | Amazon Web Services](https://aws.amazon.com/amplify/extensibility/)

AWS CLI option `source-url-type` causes error when starting Amplify deployment

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