如何在我的代码中处理此错误“无效会话错误(209)”我使用以下代码:
PFQuery *query = [PFQuery queryWithClassName:@"Query"];
[query whereKey:@"user" equalTo:[PFUser currentUser]];
[query whereKey:@"converted" equalTo:@NO];
query.cachePolicy = kPFCachePolicyNetworkElseCache;
[query findObjectsInBackgroundWithBlock:^(NSArray *objects, NSError *error)
{ if (!error){ // success }
else { [ParseErrorHandlingController handleParseError:error];}}