Ad Targeting - Find Entities by URNs API ClassCastException error message
问题 I have some problem with the "Find Entities by URNs" API in order to retrieve the metadata and value information for a collection of URNs. If I use the URL described in the doc (Sample request) with a valid access token: https://api.linkedin.com/v2/adTargetingEntities?q=urns&urns=List(urn%3Ali%3AfieldOfStudy%3A100990,urn%3Ali%3Aorganization%3A1035,urn%3Ali%3Aseniority%3A9)&locale=(language:en,country:US)&oauth2_access_token=<a-valid-token> I receive the message: { "serviceErrorCode": 0,