Facebook sharing issue

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iOS

Hello,

I already tried follow,
Imported social .framework and accounts .framework.
and, added header files as,
#import "Social/Social.h"
#import "Accounts/Acounts.h"

But still i am getting error in SLServiceTypeFacebook.

SLComposeViewController *fbController =[SLComposeViewController composeViewControllerForServiceType:SLServiceTypeFacebook]; \\Here this line i am getting error like "Declaration of 'SLServiceTypeFacebook' Must be imported from module 'Twitter.TwRequest' before it is required")

SLComposeViewControllerCompletionHandler __block completionHandler=^(SLComposeViewControllerResult result)
{
[fbController dismissViewControllerAnimated:YES completion:nil];
switch(result)
{
case SLComposeViewControllerResultCancelled:
default:
{
//NSLog(@"Cancelled.....");
}
break;
case SLComposeViewControllerResultDone:
{
//NSLog(@"Posted....");
}
break;
}};


Help Needed.