Question

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

我遵循这个指南，如果我使用Object-C项目创建新项目，一切运行良好。但是，我想使用Swift项目，所以我改变了项目语言并创建了一个桥接器来连接Swift和Object-C。但它不起作用。

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:

请帮助我！

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-桥接-Header.h

#pragma once
#include "LipHelloWorld.h"

Answer 1

最后，我找到答案，点击我的项目 - ＆gt;构建设置 - ＆gt;全部 - ＆gt;链接 - ＆gt;其他链接器标志，将其值设置为-lc++

Djinni swift项目链接错误

1 个答案: