ios - Crashlytics 手动更新到 3.8.4 导致链接器错误

Question

我有一个非常古老的遗留项目(可以追溯到 2010 年的某个地方)。它的 Crashlytics 工具包最后一次更新是在 2013 年。

我正在尝试更新它。它不使用 pod，所以我使用了 official Manual update指导。

1. 我下载了更新的工具包。
2. 按照建议用新的 Crashlytics 替换了旧的 Crashlytics。旧的没有 Fabric 工具包，所以我只是将它粘贴到那里并在项目设置中链接库。

这些是那里描述的仅有的两个步骤。但是这样做会导致链接器错误:

Undefined symbols for architecture x86_64:
  "___gxx_personality_v0", referenced from:
      +[CLSDemangleOperation demangleBlockInvokeCppSymbol:] in Crashlytics(CLSDemangleOperation.o)
      +[CLSDemangleOperation demangleSwiftSymbol:] in Crashlytics(CLSDemangleOperation.o)
      -[CLSDemangleOperation main] in Crashlytics(CLSDemangleOperation.o)
      ___28-[CLSDemangleOperation main]_block_invoke in Crashlytics(CLSDemangleOperation.o)
      Dwarf Exception Unwind Info (__eh_frame) in Crashlytics(CLSDemangleOperation.o)
  "vtable for __cxxabiv1::__pointer_type_info", referenced from:
      typeinfo for std::exception const* in Crashlytics(CLSException.o)
  NOTE: a missing vtable usually means the first non-inline virtual member function has no definition.
  "vtable for __cxxabiv1::__vmi_class_type_info", referenced from:
      typeinfo for std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > in Crashlytics(CLSException.o)
  NOTE: a missing vtable usually means the first non-inline virtual member function has no definition.
  "___cxa_begin_catch", referenced from:
      CLSTerminateHandler() in Crashlytics(CLSException.o)
      ___clang_call_terminate in Crashlytics(CLSException.o)
  "std::get_terminate()", referenced from:
      _CLSExceptionCheckHandlers in Crashlytics(CLSException.o)
  "typeinfo for char const*", referenced from:
      GCC_except_table1 in Crashlytics(CLSException.o)
  "typeinfo for std::bad_alloc", referenced from:
      GCC_except_table1 in Crashlytics(CLSException.o)
  "typeinfo for std::exception", referenced from:
      GCC_except_table1 in Crashlytics(CLSException.o)
      typeinfo for std::exception const* in Crashlytics(CLSException.o)
  "___cxa_current_exception_type", referenced from:
      CLSTerminateHandler() in Crashlytics(CLSException.o)
  "___cxa_rethrow", referenced from:
      CLSTerminateHandler() in Crashlytics(CLSException.o)
  "vtable for __cxxabiv1::__class_type_info", referenced from:
      typeinfo for std::__1::__basic_string_common<true> in Crashlytics(CLSException.o)
  NOTE: a missing vtable usually means the first non-inline virtual member function has no definition.
  "___cxa_end_catch", referenced from:
      CLSTerminateHandler() in Crashlytics(CLSException.o)
  "___cxa_demangle", referenced from:
      +[CLSDemangleOperation demangleCppSymbol:] in Crashlytics(CLSDemangleOperation.o)
  "std::terminate()", referenced from:
      ___clang_call_terminate in Crashlytics(CLSException.o)
  "std::set_terminate(void (*)())", referenced from:
      _CLSExceptionInitialize in Crashlytics(CLSException.o)
      CLSTerminateHandler() in Crashlytics(CLSException.o)
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

我尝试过的事情:

1. 删除 Crashlytics 和 Fabrics 的引用并重新链接它们。
2. 删除两个套件的物理实例并读取它们。
3. 清理 XCode 的派生数据。
4. 清理项目。
5. 通过 Cocoapods 安装最新版本。
6. 通过 Fabric App 升级

但错误仍然存​​在。现在，我束手无策。关于如何解决此问题的任何想法？

Answer 1

我想通了。

问题是，之前的人修改了链接器和编译器标志并从中删除了覆盖 Cocoapods 配置的 $(inherited) 标志，这反过来导致主项目与Cocoapods，因此缺少符号，因为 XCode 无法在没有链接的情况下找到符号。

首先，我删除了手动 Crashlytics，然后通过 cocoapods 安装它们。现在它说符号丢失了。

解决这个问题:

1. 转到“预处理器宏”并确保将 $(inherited) 添加到调试和发布配置中。
2. 转到“Other Linker Flags”并确保 $(inherited) 标志也已添加到那里。

Crashlytics 3.8.4 现已启动并运行。