Best way to cache images from Parse with cellForRowAtIndexPath - ios

Question

I was normally trying to load the image for each cell like so in my UITableView using Parse SDK:
PFRelation *relation = [object relationForKey:#"images"];
PFQuery *relationQuery = [relation query];
[relationQuery getFirstObjectInBackgroundWithBlock:^(PFObject *obj, NSError *error) {
if (!error)
{
// Adding Image to ImageView
if ([obj objectForKey:#"image"])
{
PFFile *image = (PFFile *)[obj objectForKey:#"image"];
[image getDataInBackgroundWithBlock:^(NSData *data, NSError *error){
if (error)
{
cell.carPhoto.image = [UIImage imageNamed:#"placeholder.png"];
}
else
{
UIImage *carImage = [UIImage imageWithData:data];
cell.carPhoto.image = carImage;
}
}];
}
else
{
cell.carPhoto.image = [UIImage imageNamed:#"placeholder.png"];
}
}
}];
The issues with that, is that it is using way too many queries and the cells have a little lag when scrolling and show the pic above for a brief second before the actual. I attempted to change my code to this to use SDWebImage:
PFRelation *relation = [object relationForKey:#"images"];
PFQuery *relationQuery = [relation query];
[relationQuery getFirstObjectInBackgroundWithBlock:^(PFObject *obj, NSError *error) {
if (!error)
{
// Adding Image to ImageView
if ([obj objectForKey:#"image"])
{
PFFile *image = (PFFile *)[obj objectForKey:#"image"];
NSString *theUrl = image.url;
NSLog(#"%#", theUrl);
[cell.carPhoto setImageWithURL:[NSURL URLWithString:[theUrl stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]]
placeholderImage:nil];
}
else
{
cell.carPhoto.image = [UIImage imageNamed:#"placeholder.png"];
}
}
}];
But now I keep getting: -[UIImageView setImageWithURL:placeholderImage:]: unrecognized selector sent to instance 0x7c04ab40. Basically my end goal is to have it so images aren't queried every time the tableView is scrolled, and are cached. Any ideas?