**Service** [CreativeService](https://developers.google.com/ad-manager/api/reference/v202605/CreativeService.RequiredSizeError) **CreativeSetService** [ForecastService](https://developers.google.com/ad-manager/api/reference/v202605/ForecastService.RequiredSizeError) [LineItemCreativeAssociationService](https://developers.google.com/ad-manager/api/reference/v202605/LineItemCreativeAssociationService.RequiredSizeError) [LineItemService](https://developers.google.com/ad-manager/api/reference/v202605/LineItemService.RequiredSizeError) [LineItemTemplateService](https://developers.google.com/ad-manager/api/reference/v202605/LineItemTemplateService.RequiredSizeError) [NativeStyleService](https://developers.google.com/ad-manager/api/reference/v202605/NativeStyleService.RequiredSizeError) [OrderService](https://developers.google.com/ad-manager/api/reference/v202605/OrderService.RequiredSizeError) [PublisherQueryLanguageService](https://developers.google.com/ad-manager/api/reference/v202605/PublisherQueryLanguageService.RequiredSizeError) **Inheritance** [ApiError](https://developers.google.com/ad-manager/api/reference/v202605/CreativeSetService.ApiError) ▼ [ApiVersionError](https://developers.google.com/ad-manager/api/reference/v202605/CreativeSetService.ApiVersionError) [AssetError](https://developers.google.com/ad-manager/api/reference/v202605/CreativeSetService.AssetError) [AuthenticationError](https://developers.google.com/ad-manager/api/reference/v202605/CreativeSetService.AuthenticationError) [CollectionSizeError](https://developers.google.com/ad-manager/api/reference/v202605/CreativeSetService.CollectionSizeError) [CommonError](https://developers.google.com/ad-manager/api/reference/v202605/CreativeSetService.CommonError) [CreativeAssetMacroError](https://developers.google.com/ad-manager/api/reference/v202605/CreativeSetService.CreativeAssetMacroError) [CreativeError](https://developers.google.com/ad-manager/api/reference/v202605/CreativeSetService.CreativeError) [CreativeSetError](https://developers.google.com/ad-manager/api/reference/v202605/CreativeSetService.CreativeSetError) [CreativeTemplateError](https://developers.google.com/ad-manager/api/reference/v202605/CreativeSetService.CreativeTemplateError) [CreativeTemplateOperationError](https://developers.google.com/ad-manager/api/reference/v202605/CreativeSetService.CreativeTemplateOperationError) [CustomCreativeError](https://developers.google.com/ad-manager/api/reference/v202605/CreativeSetService.CustomCreativeError) [CustomFieldValueError](https://developers.google.com/ad-manager/api/reference/v202605/CreativeSetService.CustomFieldValueError) [EntityLimitReachedError](https://developers.google.com/ad-manager/api/reference/v202605/CreativeSetService.EntityLimitReachedError) [FeatureError](https://developers.google.com/ad-manager/api/reference/v202605/CreativeSetService.FeatureError) [FileError](https://developers.google.com/ad-manager/api/reference/v202605/CreativeSetService.FileError) [HtmlBundleProcessorError](https://developers.google.com/ad-manager/api/reference/v202605/CreativeSetService.HtmlBundleProcessorError) [ImageError](https://developers.google.com/ad-manager/api/reference/v202605/CreativeSetService.ImageError) [InternalApiError](https://developers.google.com/ad-manager/api/reference/v202605/CreativeSetService.InternalApiError) [InvalidPhoneNumberError](https://developers.google.com/ad-manager/api/reference/v202605/CreativeSetService.InvalidPhoneNumberError) [InvalidUrlError](https://developers.google.com/ad-manager/api/reference/v202605/CreativeSetService.InvalidUrlError) [LabelEntityAssociationError](https://developers.google.com/ad-manager/api/reference/v202605/CreativeSetService.LabelEntityAssociationError) [NotNullError](https://developers.google.com/ad-manager/api/reference/v202605/CreativeSetService.NotNullError) [NullError](https://developers.google.com/ad-manager/api/reference/v202605/CreativeSetService.NullError) [ParseError](https://developers.google.com/ad-manager/api/reference/v202605/CreativeSetService.ParseError) [PermissionError](https://developers.google.com/ad-manager/api/reference/v202605/CreativeSetService.PermissionError) [PublisherQueryLanguageConte...](https://developers.google.com/ad-manager/api/reference/v202605/CreativeSetService.PublisherQueryLanguageContextError "PublisherQueryLanguageContextError") [PublisherQueryLanguageSynta...](https://developers.google.com/ad-manager/api/reference/v202605/CreativeSetService.PublisherQueryLanguageSyntaxError "PublisherQueryLanguageSyntaxError") [QuotaError](https://developers.google.com/ad-manager/api/reference/v202605/CreativeSetService.QuotaError) [RangeError](https://developers.google.com/ad-manager/api/reference/v202605/CreativeSetService.RangeError) [RequiredCollectionError](https://developers.google.com/ad-manager/api/reference/v202605/CreativeSetService.RequiredCollectionError) [RequiredError](https://developers.google.com/ad-manager/api/reference/v202605/CreativeSetService.RequiredError) [RequiredNumberError](https://developers.google.com/ad-manager/api/reference/v202605/CreativeSetService.RequiredNumberError) **RequiredSizeError** [RichMediaStudioCreativeError](https://developers.google.com/ad-manager/api/reference/v202605/CreativeSetService.RichMediaStudioCreativeError) [ServerError](https://developers.google.com/ad-manager/api/reference/v202605/CreativeSetService.ServerError) [SetTopBoxCreativeError](https://developers.google.com/ad-manager/api/reference/v202605/CreativeSetService.SetTopBoxCreativeError) [StatementError](https://developers.google.com/ad-manager/api/reference/v202605/CreativeSetService.StatementError) [StringFormatError](https://developers.google.com/ad-manager/api/reference/v202605/CreativeSetService.StringFormatError) [StringLengthError](https://developers.google.com/ad-manager/api/reference/v202605/CreativeSetService.StringLengthError) [SwiffyConversionError](https://developers.google.com/ad-manager/api/reference/v202605/CreativeSetService.SwiffyConversionError) [TemplateInstantiatedCreativ...](https://developers.google.com/ad-manager/api/reference/v202605/CreativeSetService.TemplateInstantiatedCreativeError "TemplateInstantiatedCreativeError") [TranscodingError](https://developers.google.com/ad-manager/api/reference/v202605/CreativeSetService.TranscodingError) [TypeError](https://developers.google.com/ad-manager/api/reference/v202605/CreativeSetService.TypeError) [UniqueError](https://developers.google.com/ad-manager/api/reference/v202605/CreativeSetService.UniqueError)

A list of all errors to be used for validating [Size](https://developers.google.com/ad-manager/api/reference/v202605/AdRuleService.Size).

*** ** * ** ***

Namespace
:
    `https://www.google.com/apis/ads/publisher/v202605`

| ## Field ||
|---|---|
| **`ApiError` (inherited)** ||
| ### `fieldPath` | ` xsd:string` The OGNL field path to identify cause of error. |
| ### `fieldPathElements` | ` https://developers.google.com/ad-manager/api/reference/v202605/CreativeSetService.FieldPathElement[]` A parsed copy of the field path. For example, the field path "operations\[1\].operand" corresponds to this list: {FieldPathElement(field = "operations", index = 1), FieldPathElement(field = "operand", index = null)}. |
| ### `trigger` | ` xsd:string` The data that caused the error. |
| ### `errorString` | ` xsd:string` A simple string representation of the error and reason. |
| **`RequiredSizeError`** ||
| ### `reason` | ` https://developers.google.com/ad-manager/api/reference/v202605/CreativeSetService.RequiredSizeError.Reason ` *** ** * ** *** **Enumerations** `REQUIRED` : [Creative.size](https://developers.google.com/ad-manager/api/reference/v202605/CreativeService.Creative#size) or [LineItem.creativePlaceholders](https://developers.google.com/ad-manager/api/reference/v202605/ForecastService.LineItem#creativePlaceholders) size is missing. `NOT_ALLOWED` : [LineItemCreativeAssociation.sizes](https://developers.google.com/ad-manager/api/reference/v202605/LineItemCreativeAssociationService.LineItemCreativeAssociation#sizes) must be a subset of [LineItem.creativePlaceholders](https://developers.google.com/ad-manager/api/reference/v202605/ForecastService.LineItem#creativePlaceholders) sizes. `UNKNOWN` :   The value returned if the actual value is not exposed by the requested API version. <br /> |