エラー

  An error occurred: IAMAccessAnalyzer - Duplicate key Criterion(Contains=[], Eq=[111111111111], Neq=[]).

間違い

  IAMAccessAnalyzer:
    Type: AWS::AccessAnalyzer::Analyzer
    Properties:
      AnalyzerName: Main
      ArchiveRules:
        - RuleName: 'TrustedAccounts'
          Filter:
            - Property: 'principal.AWS'
              Eq:
                - '111111111111'
            - Property: 'principal.AWS'
              Eq:
                - '111111111112'
      Type: ACCOUNT

修正後

  IAMAccessAnalyzer:
    Type: AWS::AccessAnalyzer::Analyzer
    Properties:
      AnalyzerName: Main
      ArchiveRules:
        - RuleName: 'TrustedAccounts'
          Filter:
            - Property: 'principal.AWS'
              Eq:
                - '111111111111'
                - '111111111112'
      Type: ACCOUNT