未知云信息错误/执行变更集失败

我正在努力设置Java AWS lambda函数,以便通过Codepipeline进行部署->云形成,我在云形成方面有一些困难。我以前使用过Terraform,所以我理解一般概念。。。

现在,我只是在标记样本模板。Codestar在存储库中创建的yml文件,因此是HelloWorld引用。

Error: Failed to execute change set: ChangeSet [arn:aws:cloudformation:us-east-1:XXXXXXXXXXXX:stack/awscodestar-test2-lambda/07e71ee0-6a73-11e7-bee5-50d5cd24fac6] cannot be executed in its current execution status of [EXECUTE_FAILED]

我做错了什么?我没有很好地掌握Fn::GetAtt调用,但我尝试了几种不同的方法,但没有任何乐趣。

**除了找出问题所在外,我还有两个问题:

1. 请解释我在Fn::GetAtt函数调用中应该引用什么?这是我在试图调用的资源顶部提供的资源名称吗(例如GetHelloWorld)?或者作为该资源的属性提供的显式名称(即FunctionName)?

2. 在Lambda函数声明中,我尝试在线设置事件触发器,然后需要引用Lambda函数。我可以从嵌套在Lambda函数资源中的事件声明中引用Lambda函数资源吗??

下面是我的模板。yml文件。

AWSTemplateFormatVersion: 2010-09-09
Transform:
- AWS::Serverless-2016-10-31
- AWS::CodeStar

Parameters:
  ProjectId:
    Type: String
    Description: AWS CodeStar projectID used to associate new resources to team members

Resources:
  RoleForLambda:
    Type: "AWS::IAM::Role"
    Properties: 
      AssumeRolePolicyDocument:
        Version: "2012-10-17"
        Statement: 
          - Effect: "Allow"
            Principal: 
              Service: "lambda.amazonaws.com"
            Action: "sts:AssumeRole"
      Policies:
      - PolicyName: s3put
        PolicyDocument:
          Version: "2012-10-17"
          Statement:
          - Effect: "Allow"
            Action:
            - 'logs:CreateLogGroup'
            - 'logs:CreateLogStream'
            - 'logs:PutLogEvents'
            - 's3:PutObject'
            Resource: 
            - 'arn:aws:logs:*:*:*'
            - 'arn:aws:s3:*'
  GetHelloWorld:
    Type: AWS::Serverless::Function
    Properties:
      Handler: com.aws.codestar.projecttemplates.handler.HelloWorldHandler
      Runtime: java8
      Timeout: 60
      MemorySize: 256
      Role:
        'Fn::GetAtt':
          - RoleForLambda
          - Arn
    ScheduleRule:
      Type: 'AWS::Events::Rule'
      Properties:
        Name: DownloadFiles
        ScheduleExpression: 'cron(2,7,12,17,22,27,32,37,42,47,52,57 * * * ? *)'
        State: ENABLED
        Targets:
          - Arn: 
              'Fn::GetAtt':
                - GetHelloWorld
                - Arn
            Id: downloadFiles
    LambdaInvokePermission:
      Type: "AWS::Lambda::Permission"
      Properties: 
        Action: lambda:InvokeFunction
        FunctionName: GetHelloWorld
        Principal: events.amazonaws.com
        SourceAccount: AWS::XXXXXXXXXXXX
        SourceArn:
          - Arn:
              'Fn::GetAtt':
                - ScheduleRule
                - Arn