runtime sdk for ios 100.0在oc工程中无法使用Feature查询服务？

AGSServiceFeatureTable *featuretable=[AGSServiceFeatureTable serviceFeatureTableWithURL:[NSURL URLWithString:@"http://1j5x344819.51mypc.cn:30 ... ot%3B]];
AGSQueryParameters *queryParameters=[[AGSQueryParameters alloc] init];
queryParameters.whereClause=@"NAME = '成都'";

[featuretable queryFeaturesWithParameters:queryParameters completion:^(AGSFeatureQueryResult *result, NSError *error) {
if (error!=nil) {
NSLog(@"%@",error);
}else{
NSArray *array=result.featureEnumerator.allObjects;
AGSFeature *feature=array[0];
[self.mapView setViewpointGeometry:feature.geometry completion:nil];
NSLog(@"%@",feature.geometry);
}
}];