Ios ViewController没有'；t工作错误\u加载

调用viewcontroller时，不执行加载指令 不行

尝试这两种方法，但不起作用

命令调用viewcontroller

EvoViewController *aiv2 = [self.storyboard instantiateViewControllerWithIdentifier:@"EvoViewController"];


    [self presentViewController:aiv2 animated:NO completion:nil];

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抱歉，我的英语不好

如果您遇到错误，请发布整个错误消息。没有发生错误，只是不执行加载指令

EvoViewController *aiv2 = [self.storyboard instantiateViewControllerWithIdentifier:@"EvoViewController"];


    [self presentViewController:aiv2 animated:NO completion:nil];