Recibo un error en AdminDirectory.Members.insert(member, groupEmail);

Falló con la llamada de API de error a directory.members.insert falló con el error: Recurso no encontrado: groupKey

no puedo agregar usuarios al grupo de google

¡por favor ayuda!

 function myFunction() { addMembersFromSheet(); } function addMembersFromSheet() { var sheet = SpreadsheetApp.getActiveSpreadsheet().getSheetByName("groups"); // var emails = sheet.getRange(1,1,sheet.getLastRow()-1,1).getValues(); var emails = SpreadsheetApp.getActive().getRange("Sheet1!A1:A3").getValues(); var group = GroupsApp.getGroupByEmail("testingw@googlegroups.com"); for(i = 0; i < emails.length; i++) { try { addGroupMember(emails[i][0], 'testingw@googlegroups.com'); console.log(emails[i][0]); } catch(e) { console.error(e); continue; } } } function addGroupMember(userEmail,groupEmail) { const member = { email: userEmail, role: 'MEMBER' }; try { AdminDirectory.Members.insert(member, groupEmail); Logger.log('User %s added as a member of group %s.', userEmail, groupEmail); } catch (err) { // TODO (developer)- Handle exception from the API Logger.log('Failed with error %s', err.message); } }