SAM CLI Not Packaging a Nested Stack in a Stackset

Hello i am having trouble packing my Nested Stack in my Stackset using Sam Cli

in my Stackset i have this nest stack

#-------- [RootBootstrapStack ] --------##
  RootBootstrapStack:
    Type: AWS::CloudFormation::Stack
    DeletionPolicy: Delete
    Properties:
      TemplateURL: ./toolingaccount/root-bootstrap.yaml
      Parameters:
        ManagementAccountID: !Ref ManagementAccountID
        ToolingAccountID: !Ref ToolingAccountID