このエラーメッセージに関する原因と対処に関して説明します。
エラーメッセージ(英語)：
cloudformation deploy error
対処
関連リンク
AWS CloudFormationのデプロイエラー - Qiita
https://qiita.com/uma8/items/b6a4b7ba961819ec0ce6
AWS CloudFormation のトラブルシューティング - AWS CloudFormation
https://docs.aws.amazon.com/ja_jp/AWSCloudFormation/latest/UserGuide/troubleshooting.html
deploy ? AWS CLI 1.16.111 Command Reference
https://docs.aws.amazon.com/cli/latest/reference/cloudformation/deploy/index.html
テンプレートの検証 - AWS CloudFormation
https://docs.aws.amazon.com/ja_jp/AWSCloudFormation/latest/UserGuide/using-cfn-validate-template.htm・・・
aws cloudformation deploy fails with nested stack: "TemplateURL must ...
https://github.com/aws/aws-cli/issues/3200
cloudformation deploy CLI exits with return code 255 if stack exists ...
https://github.com/awslabs/serverless-application-model/issues/71
Cloudformation deploy broken ・ Issue #3601 ・ aws/aws-cli ・ GitHub
https://github.com/aws/aws-cli/issues/3601
Requires capabilities : [CAPABILITY_IAM] ・ Issue #51 ・ awslabs ...
https://github.com/awslabs/serverless-application-model/issues/51
aws cloudformation deploy - how to increase wait time - Stack Overflow
https://stackoverflow.com/questions/50034519/aws-cloudformation-deploy-how-to-increase-wait-time
AWS SAMでアプリをデプロイする。ついでにSAM Localでローカルテスト ...
https://wp-kyoto.net/deploy-serverless-app-by-aws-sam