I am trying to connect my main app so that when I press a button it goes to the iMessage extension. I have set up the storyboard reference and selected it to the iMessage storyboard. But on runtime I get an error saying
: error: Did not find storyboard named "MainInterface" referenced from ShowAndComments.storyboard Command LinkStoryboards failed with a nonzero exit code.
Detele that segue and on your button action instantiate programatically a MFMessageComposeViewController and present it.
OBJ-C example
Create your MFMessageComposeViewController
NSArray *recipents = @[@"12345678", @"72345524"];
MFMessageComposeViewController *messageController = [[MFMessageComposeViewController alloc] init];
messageController.messageComposeDelegate = self;
[messageController setRecipients:recipents];
[messageController setBody:message];
Show it (vc should be an instance of UIViewController or a subclass of it)
[vc presentViewController:messageController animated:YES completion:nil];