符号未找到，预期在Flat Namespace ObjC ++中 [英] Symbol Not Found, expected in Flat Namespace ObjC++

问题描述

我可能有一个简单的问题，但在编译期间没有信息性错误或警告，提醒我发生了什么问题。

有一个Objective-C ++应用程序，包括一个C + +主要和ObjC头文件。

它构建正常，但运行时，它会给出此错误消息：

Dyld错误消息：
未找到符号：_OBJC_CLASS _ $ _ AppController
引用自：/ Users / slate / Documents / osirixplugins / eqOsirix / build / Development / rcOsirix.app / Contents / MacOS / rcOsirix
预期在：flat namespace
在/Users/slate/Documents/osirixplugins/eqOsirix/build/Development/rcOsirix.app/Contents/ MacOS / rcOsirix


没有数量的Google搜寻产生解决方案，

AppController.h包含在目标（已选中）中， #import



ObjC ++常见问题给我头痛。

谢谢，

-S！

解决方案

很明显，AppController类丢失了。是在动态库的框架中定义的AppController类吗？如果是这样，当你运行应用程序，它知道在哪里找到的库/框架？

顺便说一下，这是一个链接器问题。头文件是不相关的。它是.m或.mm文件，你需要看看。

I've got probably what is a simple problem, but there's no informative errors or warnings during compile to alert me to what is going wrong.

I've got a Objective-C++ app that includes a C++ main and ObjC header files.

It builds fine, but when run, it gives this error message:

Dyld Error Message:
  Symbol not found: _OBJC_CLASS_$_AppController
  Referenced from: /Users/slate/Documents/osirixplugins/eqOsirix/build/Development/rcOsirix.app/Contents/MacOS/rcOsirix
  Expected in: flat namespace
 in /Users/slate/Documents/osirixplugins/eqOsirix/build/Development/rcOsirix.app/Contents/MacOS/rcOsirix

No amount of googling has resulted in a solution, and I'm sure I've just missed a compilation or build option somewhere.

"AppController.h" is included in the target (checked), and #import'd in the ObjC Class File.

Any help is greatly appreciated.

ObjC++ constantly gives me a headache.

Thanks,

-S!

解决方案

Clearly the AppController class is missing. Is the AppController class defined in a framework of dynamic library? If so, when you run the app, does it know where to find the libraries/frameworks?

This is a linker issue, by the way. The header files are irrelevant. It's the .m or .mm files you need to look at.

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