Why is SDWebImage with UITableView causing exception? - iphone

Question

I'm a noob to iphone development and I am trying to implement the SDWebImage library into my project. My project builds fine, however it when I display my tableview my app crashes with an invalid argument exception. I followed the installation instructions thoroughly. I added the ImageIO framework, added the -fobjc-arc flag since my project is non-ARC, and imported the appropriate header. Any help is greatly appreciated.
MY Exception
'NSInvalidArgumentException', reason: '-[UIImageView setImageWithURL:placeholderImage:]: unrecognized selector sent to instance 0x6e47d50'
My Code
// Customize the appearance of table view cells.
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier] autorelease];
}
//Lazy Loader
[cell.imageView setImageWithURL:[NSURL URLWithString:#"http://www.domain.com/path/to/image.jpg"]
placeholderImage:[UIImage imageNamed:#"mylogo.png"]];
// Configure the cell...
NSDictionary *aTweet = [tweets objectAtIndex:[indexPath row]];
cell.textLabel.text = [aTweet objectForKey:#"text"];
cell.textLabel.adjustsFontSizeToFitWidth = YES;
cell.textLabel.font = [UIFont systemFontOfSize:12];
cell.textLabel.minimumFontSize = 10;
cell.textLabel.numberOfLines = 4;
cell.textLabel.lineBreakMode = UILineBreakModeWordWrap;
cell.detailTextLabel.text = [aTweet objectForKey:#"from_user"];
NSURL *url = [NSURL URLWithString:[aTweet objectForKey:#"profile_image_url"]];
NSData *data = [NSData dataWithContentsOfURL:url];
cell.imageView.image = [UIImage imageWithData:data];
cell.selectionStyle = UITableViewCellSelectionStyleNone;
return cell;
}

Answer 1

Inside the top of that file, have you included the SDWebImage header, ie:
#import <SDWebImage/UIImageView+WebCache.h>
(if you are using cocoapods.. otherwise something like:)
#import "SDWebImage/UIImageView+WebCache.h"
or
#import "UIImageView+WebCache.h"
edit:
Why have you got this code at the top:
[cell.imageView setImageWithURL:[NSURL URLWithString:#"http://www.domain.com/path/to/image.jpg"]
placeholderImage:[UIImage imageNamed:#"mylogo.png"]];
when you have this setting it again at the bottom:
NSURL *url = [NSURL URLWithString:[aTweet objectForKey:#"profile_image_url"]];
NSData *data = [NSData dataWithContentsOfURL:url];
cell.imageView.image = [UIImage imageWithData:data];
you dont need both - perhaps remove the code that is at the bottom that doesnt use the lazy loader?