“线程 1:在断点处停止"初始化 NSURL 对象时出错 [英] "Thread 1: stopped at breakpoint" error when initializing an NSURL object

问题描述

我正在 iTunes U 上学习斯坦福大学 iOS 开发课程.

I am following the Stanford University iOS development course on iTunes U.

在其中一个演示(我一直在尝试遵循)中，有一段代码从 NSURL 加载属性列表并将其作为 NSMutableDictionary 返回.

In one of the demos (that I have been trying to follow), there is this code that loads the property list from an NSURL and returns it as NSMutableDictionary.

-(NSMutableDictionary *) words
{

    NSURL *wordsURL=[NSURL URLWithString:@"http://cs193p.stanford.edu/vocabwords.txt"];

    words=[[NSMutableDictionary dictionaryWithContentsOfURL:wordsURL] retain];


    return words;
}

应用程序构建成功，但在运行时出现以下错误并卡住:

The application is successfully built, but at runtime it gives the following error and gets stuck:

我不知道问题出在哪里.你能帮忙吗?

I can't figure out what the problem is. Can you please help?

推荐答案

您在断点处停止.那是一个调试工具，而不是一个错误.看到左边距中的蓝色箭头/标签，行号在哪里?将它拖到任何地方(您会看到噗")以将其删除，然后再次运行您的项目.

You're stopped at a breakpoint. That's a debugging tool, not an error. See the blue arrow/tab in the left margin, where the line numbers are? Drag that away and drop it anywhere (you'll see a "poof") to remove it, then run your project again.

您还可以通过键入 ⌘-Y 来停用 所有 断点，这是菜单项 Debug>Deactivate Breakpoints 的等效键，或者您可以在断点导航器中查看所有断点(点击 ⌘-6).

You can also deactivate all breakpoints by typing ⌘-Y, the key equivalent for the menu item Debug>Deactivate Breakpoints, or you can view all your breakpoints in the Breakpoint Navigator (hit ⌘-6).

当执行像这样停止时，您可以从断点继续，方法是在控制台的调试器提示符处键入 continue:

When execution stops like this, you can continue from the breakpoint, either by typing continue at the debugger prompt in the Console:

(lldb) continue

或者点击调试器控件中的播放"按钮.您还可以键入 Control-⌘-Y，这与菜单项 Debug>Continue 等效.

Or hitting the "Play" button in the debugger controls. You can also type Control-⌘-Y, which is the equivalent for the menu item Debug>Continue.

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