amazon web services - Getting Crash with AWSS3PutObjectRequest -

i using aws sdk way

properties declaration :

@property (nonatomic, strong)awsstaticcredentialsprovider *credentialsprovider; @property (nonatomic, strong)awsserviceconfiguration * configuration; @property (nonatomic, strong)awss3 *s3; @property (nonatomic, strong) awss3putobjectrequest *putrequest; 

and implementation way

  accesskeys * accesskeys = [ecsglobals sharedinstance].accesskeys;     self.credentialsprovider = [awsstaticcredentialsprovider    credentialswithaccesskey:accesskeys.accesskeyid secretkey:accesskeys.secretaccesskey];     self.configuration = [awsserviceconfiguration configurationwithregion:awsregionuseast1    credentialsprovider:self.credentialsprovider];     self.s3 = [[awss3 alloc] initwithconfiguration:self.configuration];     self.putrequest = [awss3putobjectrequest new];   nsarray *paths = nssearchpathfordirectoriesindomains(nsdocumentdirectory, nsuserdomainmask, yes); nsstring *documentsdirectory = [paths objectatindex:0]; nsstring *savedimagepath = [documentsdirectory stringbyappendingpathcomponent:imagename]; nsdata *imagedata = uiimagejpegrepresentation(image, 0.2); [imagedata writetofile:savedimagepath atomically:no];   long long filesize = [[[nsfilemanager defaultmanager] attributesofitematpath:savedimagepath error:nil][nsfilesize] longlongvalue];   self.putrequest.bucket = bucketname; self.putrequest.key = imagename; self.putrequest.contenttype = @"image/jpeg"; self.putrequest.body = [nsurl fileurlwithpath:savedimagepath]; self.putrequest.contentlength =  [nsnumber numberwithlonglong:filesize]; [[self.s3 putobject:self.putrequest] continuewithblock:^id(bftask *task) {     nslog(@"amazon error : %@", [task error]);     return nil; }]; 

but getting crash

[cferror retain]: message sent deallocated instance 0x7f2daff0

i have checked properties strong. not sure why getting crash.

i found solution. getting issue how saved image path become nil before coming in use. there no image data sending aws.

after fixing this, images uploading successfully.