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[Your First Cross-Platform Djinni App: Part 2, iOS][1]

我遵循这个指导方针，如果我用 Object-C 项目创建新项目，一切都会很好。但是，我想使用 Swift 项目，所以我更改了项目语言并创建了一个连接 Swift 和 Object-C 的桥梁。但它行不通。

如果我尝试调用此函数，则会发生错误

  let hw = LipHelloWorld.create()

 Undefined symbols for architecture x86_64:
"std::__1::__shared_weak_count::__get_deleter(std::type_info const&) const", referenced from:
  vtable for std::__1::__shared_ptr_emplace<personalapp::HelloWorldImpl, std::__1::allocator<personalapp::HelloWorldImpl> > in libpersonalapp_objc.a(HelloWorldImpl.o)
  "std::__1::__next_prime(unsigned long)", referenced from:

请帮我！

hello_world.hpp

// AUTOGENERATED FILE - DO NOT MODIFY!
// This file generated by Djinni from personalapp.djinni

#pragma once

#include <memory>
#include <string>
namespace personalapp {

class HelloWorld {
public:
    virtual ~HelloWorld() {}
    static std::shared_ptr<HelloWorld> create();
    virtual std::string get_hello_world() = 0;
};
}  // namespace personalapp

HelloWorldImpl.hpp

 #pragma once 
 #include "hello_world.hpp"

namespace personalapp {

class HelloWorldImpl : public personalapp::HelloWorld{
public:
    HelloWorldImpl();

    std::string get_hello_world() override;
};
}

PersonalApp-Bridging-Header.h

#pragma once
#include "LipHelloWorld.h"
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1 回答 1

2

终于找到了答案，点击我的项目-> Build Settings--> All--> Linking--> Other Linker Flags，将其值设置为-lc++

于 2016-04-26T01:31:22.410 回答