1. 确认SNS主题ARN是否正确，并将其引用到正确的AWS地区。
2. 确保篇章具有具有基于子网的网络连接。
3. 确认IAM角色是否有充分的权限，并具有将SNS主题发布到Eventbridge的权限。如果没有，请按照以下方法创建IAM角色：

import boto3

iam_client = boto3.client('iam')

role_name = 'eventbridge-to-sns-role'

trust_policy = { "Version": "2012-10-17", "Statement": [ { "Effect": "Allow", "Principal": { "Service": "events.amazonaws.com" }, "Action": "sts:AssumeRole" } ] }

response = iam_client.create_role( RoleName=role_name, AssumeRolePolicyDocument=json.dumps(trust_policy) )

policy_name = 'eventbridge-to-sns-publish'

policy = { "Version": "2012-10-17", "Statement": [ { "Effect": "Allow", "Action": [ "sns:Publish" ], "Resource": "*" } ] }

response = iam_client.create_policy( PolicyName=policy_name, PolicyDocument=json.dumps(policy) )

policy_arn = response['Policy']['Arn']

iam_client.attach_role_policy( RoleName=role_name, PolicyArn=policy_arn )

4. 使用AWS CLI测试事件和通知：

aws events put-events --entries file://events.json

aws sns publish --topic-arn arn:aws:sns:us-east-1:123456789012:my-topic --message "test"