My ionic app won't run in iphone and sim

I am trying to run my app I do the build but the stop at the splash screen and show this error on Xcode window
im using xcode 9.

#import <UIKit/UIKit.h>

int main(int argc, char* argv[])
{
@autoreleasepool {
int retVal = UIApplicationMain(argc, argv, nil, @“AppDelegate”);
return retVal;
}
}

thank you