Enum describing possible errors from AudienceInsightsService.

[Proto definition ![GitHub](https://developers.google.com/site-assets/logo-github.svg)](https://github.com/googleapis/googleapis/blob/master/google/ads/googleads/v23/errors/audience_insights_error.proto)

| Enums ||
|---|---|
| ## `DIMENSION_INCOMPATIBLE_WITH_TOPIC_AUDIENCE_COMBINATIONS` | The dimensions cannot be used with topic audience combinations. |
| ## `UNKNOWN` | The received error code is not known in this version. |
| ## `UNSPECIFIED` | Enum unspecified. |