sam build exception when trying to use dynamic resources

[chizou]

Due to my issues with #1292, I tried to ditch Refing the SSM value and use dynamic resources to access the value instead. My template snippet looks like this:

  CfDeployer:
    Type: AWS::Serverless::Function
    Properties:
      CodeUri: lambdas/cf_deployer/
      Layers: '{{resolve:ssm:/layers/orgfunctions:1}}'
      Policies:
        - Version: "2012-10-17"
          Statement:
            - Effect: Allow
              Action: "sts:AssumeRole"
              Resource: "*"
      Timeout: 300

Running sam build gives me the this error: samcli.commands.validate.lib.exceptions.InvalidSamDocumentException: [InvalidResourceException('CfDeployer', "Type of property 'Layers' is invalid.")] ('CfDeployer', "Type of property 'Layers' is invalid.")

Running sam package does seem to work correctly

[moelasmar]

Layers property accepts value of type List, and not of type string. Please check the documentation here

[xazhao]

Closing because it has been inactive for a while. Feel free to reopen it if you have any other questions.