NSData writeToFile no funciona

Question

Parece que no puedo obtener nsdata para escribir en un archivo. Alguna idea de lo que puedo estar haciendo mal. Gracias por adelantado.

NSString* filename = @"myfile.txt"; 

NSString *applicationDocumentsDir = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0]; 

NSString *storePath = [applicationDocumentsDir stringByAppendingPathComponent:filename];  

if ([fileManager fileExistsAtPath:applicationDocumentsDir]) 
    NSLog(@"applicationDocumentsDir exists"); // verifies directory exist 

NSData *data = [NSData dataWithContentsOfURL:URL]; 

if (data) {  
    NSString *content = [[NSString alloc] initWithBytes:[data bytes] 
                 length:[data length] encoding: NSUTF8StringEncoding]; 

    NSLog(@"%@", content); // verifies data was downloaded correctly 

    NSError* error; 
    [data writeToFile:storePath options:NSDataWritingAtomic error:&error]; 

    if(error != nil) 
     NSLog(@"write error %@", error); 
} 

que seguir recibiendo el error

"The operation couldn’t be completed. No such file or directory" 

Answer 1

Trate

NSString *storePath = [applicationDocumentsDir stringByAppendingPathComponent:@"myfile.txt"]; 

Y

if ([[NSFileManager defaultManager] fileExistsAtPath:storePath]) 
     NSLog(@"applicationDocumentsDir exists");