Hello, I need to create a GmailAd. However, when modifying the code example in:
Adding my own AdGroupId, I get the following exception:
Request failed due to ApiException. Underlying ApiErrors:
Error 0: NullError{apiErrorType=NullError,
errorString=NullError.NULL_CONTENT, fieldPath=media[0].data,
fieldPathElements=[FieldPathElement{field=media, index=0},
FieldPathElement{field=data}], reason=NULL_CONTENT, trigger=}
I have investigated about the NullError exception: https://developers.google.com/adwords/api/docs/reference/v201809/ReportDefinitionService.NullError
However the code example doesn't seem to have any issues (nothing seems to be null when printing it).
Appreciate any help at this point.