Xcode 4-clang:错误:链接器命令失败，退出代码为1(使用-v查看调用) [英] Xcode 4 - clang: error: linker command failed with exit code 1 (use -v to see invocation)

问题描述

尝试构建我的项目时，我不断收到以下错误.我在Google上进行了搜索，发现有些人的类间变量具有相同的名称，并且/或者忘记了在Linker中包含/包含某些类的多个包含物，但对我而言并非如此.

I keep getting the following error when trying to Build my project. I did a Google search and found some folks who had the same name for their variables between classes and/or forgot to include/had multiple inclusions of some classes in their Linker, but this is not the case for me.

请参见下图:

推荐答案

正如错误所述，它找不到main函数.通常，在iOS项目中，此功能随模板提供，如下所示:

As it says in the error it can't find the main function. Normally in an iOS Project this function comes with the template and looks something like this:

int main(int argc, char *argv[])
{
    @autoreleasepool {
        return UIApplicationMain(argc, argv, nil, NSStringFromClass([AppDelegate class]));
    }
}

之所以需要它，是因为main函数是每个C，C ++和Objective-C程序的入口.它位于 Supporting Files 组的一个名为main.m的文件中(这并不意味着您不能将其移动到其他位置).

It is needed because the main function is the entrance point for every C, C++ and Objective-C program. It is located in a file called main.m in the Supporting Files group (which doesn't mean you're not allowed to move it elsewhere).

要解决此错误，请查看文件/功能是否存在.如果是这样，请打开实用程序窗格(右侧)，转到第一个选项卡，查看是否选中了目标的复选框.

To fix this error, look if the file/the function exists. If they do, open the utilities pane (the right one), go to the first tab and look if the checkbox of the target is selected.

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