CloudFormation のテンプレートの検証エラーや形式エラーはどのように解決すればよいですか?

{
  "Parameters" : { ... },
  "Resources" : {
    "EC2Instance01" : {
      "Type" : "AWS::EC2::Instance",
      "Properties" : {
        "ImageId" : {"Ref": "test"},
        ...
      }
    }
  }
}

Parameters:
Resources:
  EC2Instance01:
    Type: AWS::EC2::Instance
    Properties:
      ImageId: !Ref: test

"Parameters" : {
  "ParameterName" : {
    "AllowedPattern" : "A regular expression that represents the patterns to allow for String types.",
    "AllowedValues" : "An array containing the list of values allowed for the parameter",
    "ConstraintDescription" : "A string that explains a constraint when the constraint is violated"
    "Default" : "A value of the appropriate type for the template to use if no value is specified when a stack is created. If you define constraints for the parameter, you must specify a value that adheres to those constraints",
    "Description" : "A string of up to 4000 characters that describes the parameter",
    "MaxLength" : "An integer value that determines the largest number of characters you want to allow for String types",
    "MaxValue" : "A numeric value that determines the largest numeric value you want to allow for Number types.",
    "MinLength" : "An integer value that determines the smallest number of characters you want to allow for String types.",
    "MinValue" : "A numeric value that determines the smallest numeric value you want to allow for Number types.",
    "NoEcho" : "Whether to mask the parameter value when a call is made that describes the stack.
                 If you set the value to true, the parameter value is masked with asterisks (*****).",
    "Type" : "The data type for the parameter (DataType)."
 },

{
  "Parameters": {
    "ParameterA": {
      "Type": "String",
      "Default": "abc"
    },
    "ParameterB": {
      "Type": "String",
      "Default": "def"
    },
    "ParameterC": {
      "Type": "String",
      "Default": {
        "Fn::Sub": "${ParameterA}-${ParameterB}"
      }
    }
  },
  "Resources": {
    "MyS3Bucket": {
      "Type": "AWS::S3::Bucket",
      "Properties": {
        "BucketName": {
          "Ref": "ParameterC"
        }
      }
    }
  }
}

Parameters:
 ParameterA:
  Type: String
  Default: abc
 ParameterB:
  Type: String
  Default: def
 ParameterC:
  Type: String
  Default: !Sub '${ParameterA}-${ParameterB}'
Resources:
 MyS3Bucket:
  Type: 'AWS::S3::Bucket'
  Properties:
   BucketName: !Ref ParameterC

{
  "Conditions": {
    "ConditionA": {
      "Fn::Not": [
        {
          "Fn::Equals": [
            "",
            "Sample"
          ]
        }
      ]
    },
    "ConditionB": {
      "Fn::Not": [
        {
          "Fn::Equals": [
            "",
            "Sample"
          ]
        }
      ]
    }
  },
  "Resources": {
    "EC2RouteA": {
      "Type": "AWS::EC2::Route",
      "Condition": [
        "ConditionA",
        "ConditionB"
      ],
      "Properties": {
       ...
      }
    }
  }
}

Conditions:
 ConditionA: !Not 
  - !Equals 
   - ''
   - Sample
 ConditionB: !Not 
  - !Equals 
   - ''
   - Sample
Resources:
  EC2RouteA:
  Type: 'AWS::EC2::Route'
  Condition:
   - ConditionA
   - ConditionB
  Properties:

{
  "Conditions": {
    "ConditionA": {
      "Fn::Not": [
        {
          "Fn::Equals": [
            "",
            "Sample"
          ]
        }
      ]
    },
    "ConditionB": {
      "Fn::Not": [
        {
          "Fn::Equals": [
            "",
            "Sample"
          ]
        }
      ]
    },
    "ConditionAandB": {
      "Fn::And": [
        {
          "Condition": "ConditionA"
        },
        {
          "Condition": "ConditionB"
        }
      ]
    }
  },
  "Resources": {
    "EC2RouteA": {
      "Type": "AWS::EC2::Route",
      "Condition": "ConditionAandB",
      "Properties": {
        ...
      }
    }
  }
}

Conditions:
  ConditionA:
    Fn::Not:
    - Fn::Equals:
      - ''
      - Sample
  ConditionB:
    Fn::Not:
    - Fn::Equals:
      - ''
      - Sample
  ConditionAandB:
    Fn::And:
    - Condition: ConditionA
    - Condition: ConditionB
Resources:
  EC2RouteA:
    Type: AWS::EC2::Route
    Condition: ConditionAandB
    Properties:

{
  "IPSetlistA": {
    "Type": "AWS::WAFRegional::IPSet",
    "Properties": {
      "Name": "IPSet for IP addresses that are not allowed",
      "IPSetDescriptors": [
        {
          "Type": "IPV4",
          "Value": "x.x.x.x/x"
        },
        {
          "Type": "IPV4",
          "Value": "x.x.x.x/x"
        }
      ]
    }
  }
}

IPSetlistA:
 Type: 'AWS::WAFRegional::IPSet'
 Properties:
  Name: IPSet for IP addresses that are not allowed
  IPSetDescriptors:
   - Type: IPV4
    Value: x.x.x.x/x
   - Type: IPV4
    Value: x.x.x.x/x

{
    "Transform": "AWS::Serverless-2016-10-31",
    "Resources": {
        "MyServerlessFunctionLogicalID": {
            "Type": "AWS::Serverless::Function",
            "Properties": {
                "Handler": "index.handler",
                "Runtime": "nodejs8.10",
                "CodeUri": "s3://testBucket/mySourceCode.zip"
            }
        }
    }
}

Transform: AWS::Serverless-2016-10-31
Resources:
  MyServerlessFunctionLogicalID:
    Type: AWS::Serverless::Function
    Properties:
      Handler: index.handler
      Runtime: nodejs8.10
      CodeUri: 's3://testBucket/mySourceCode.zip'

LinuxInstance:
    Type: AWS::EC2::Instance
    Properties:
      SubnetId: !Ref ServerSubnetID 
      KeyName: !Ref EC2KeyPairName
      SecurityGroupIds: sg-1234567890 <This resource must exist and be in the same AWS Region as the stack.>

{
   "Resources": {
      "WaitCondition": {
         "Type": "AWS::CloudFormation::WaitCondition"
      }
   },
   "Bucket": {
      "Type": "AWS::S3::Bucket",
      "Properties": {
         "Name": "BucketName"
      }
   }
}

Resources:
  WaitCondition:
    Type: AWS::CloudFormation::WaitCondition
Bucket:
  Type: AWS::S3::Bucket
  Properties:
    Name: BucketName