C++ 大量：'；苹果Mach-O链接器错误'；

我在Xcode中制作了一个iPhone应用程序，它使用DropBox API。我有23个错误全部命名为苹果Mach-O链接器错误。我已经把我的二进制文件与Dropbox库联系起来了，还有：SoalSt配置、QuasZyCar、安全、CFNetwork、CieGrand、UIKIT和基金会。我并没有使用所有这些框架，但DropBox告诉我必须导入其中的一些框架，我正在使用其余的框架

我该怎么办

以下是其中一个错误：

Ld /Users/Zach/Library/Developer/Xcode/DerivedData/SnapDrop-fwhwffwawcnkfwbxvokogcjaaahb/Build/Products/Debug-iphoneos/SnapDrop.app/SnapDrop normal armv7
    cd /Users/Zach/Desktop/SnapDrop
    setenv IPHONEOS_DEPLOYMENT_TARGET 7.0
    setenv PATH "/Applications/Xcode5-DP3.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin:/Applications/Xcode5-DP3.app/Contents/Developer/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin"
    /Applications/Xcode5-DP3.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -arch armv7 -isysroot /Applications/Xcode5-DP3.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS7.0.sdk -L/Users/Zach/Library/Developer/Xcode/DerivedData/SnapDrop-fwhwffwawcnkfwbxvokogcjaaahb/Build/Products/Debug-iphoneos -F/Users/Zach/Library/Developer/Xcode/DerivedData/SnapDrop-fwhwffwawcnkfwbxvokogcjaaahb/Build/Products/Debug-iphoneos -F/Users/Zach/Desktop/SnapDrop -F/Users/Zach/Desktop/SnapDrop/../../Downloads/dropbox-ios-sync-sdk-1-1.1.0 -filelist /Users/Zach/Library/Developer/Xcode/DerivedData/SnapDrop-fwhwffwawcnkfwbxvokogcjaaahb/Build/Intermediates/SnapDrop.build/Debug-iphoneos/SnapDrop.build/Objects-normal/armv7/SnapDrop.LinkFileList -dead_strip -fobjc-arc -fobjc-link-runtime -miphoneos-version-min=7.0 -framework Dropbox -framework QuartzCore -framework SystemConfiguration -framework Security -framework CFNetwork -framework CoreGraphics -framework UIKit -framework Foundation -Xlinker -dependency_info -Xlinker /Users/Zach/Library/Developer/Xcode/DerivedData/SnapDrop-fwhwffwawcnkfwbxvokogcjaaahb/Build/Intermediates/SnapDrop.build/Debug-iphoneos/SnapDrop.build/Objects-normal/armv7/SnapDrop_dependency_info.dat -o /Users/Zach/Library/Developer/Xcode/DerivedData/SnapDrop-fwhwffwawcnkfwbxvokogcjaaahb/Build/Products/Debug-iphoneos/SnapDrop.app/SnapDrop

Undefined symbols for architecture armv7:
  "std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::append(char const*)", referenced from:
      dbx_api_account_info(dbx_account*, std::__1::unique_ptr<dbx_account_info, dbx_account_info_deleter>*, std::__1::unique_ptr<dbx_access_info, std::__1::default_delete<dbx_access_info> >*, HttpRequester&, int) in Dropbox(api.o)
      dbx_url_encode(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&) in Dropbox(util.o)
      dbx_build_url_with_params(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, std::initializer_list<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > const&, std::initializer_list<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > const&) in Dropbox(util.o)
  "operator new(unsigned long)", referenced from:
      std::__1::__function::__func<HttpRequester::HttpRequester(dbx_env*, LifecycleManager&, std::__1::mutex*, void*, void (*)(void*), void*)::'lambda'(), std::__1::allocator<HttpRequester::HttpRequester(dbx_env*, LifecycleManager&, std::__1::mutex*, void*, void (*)(void*), void*)::'lambda'()>, void ()>::__clone() const in Dropbox(env.o)
  "std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::reserve(unsigned long)", referenced from:
      dbx_api_account_info(dbx_account*, std::__1::unique_ptr<dbx_account_info, dbx_account_info_deleter>*, std::__1::unique_ptr<dbx_access_info, std::__1::default_delete<dbx_access_info> >*, HttpRequester&, int) in Dropbox(api.o)
      dbx_url_encode(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&) in Dropbox(util.o)
      dbx_build_url_with_params(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, std::initializer_list<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > const&, std::initializer_list<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > const&) in Dropbox(util.o)
  "std::__1::chrono::system_clock::now()", referenced from:
      std::__1::cv_status std::__1::condition_variable::wait_for<long long, std::__1::ratio<1ll, 1000ll> >(std::__1::unique_lock<std::__1::mutex>&, std::__1::chrono::duration<long long, std::__1::ratio<1ll, 1000ll> > const&) in Dropbox(sync.o)
      std::__1::cv_status std::__1::condition_variable::wait_for<long, std::__1::ratio<3600ll, 1ll> >(std::__1::unique_lock<std::__1::mutex>&, std::__1::chrono::duration<long, std::__1::ratio<3600ll, 1ll> > const&) in Dropbox(api.o)
  "std::__1::chrono::steady_clock::now()", referenced from:
      std::__1::cv_status std::__1::condition_variable::wait_for<long long, std::__1::ratio<1ll, 1000ll> >(std::__1::unique_lock<std::__1::mutex>&, std::__1::chrono::duration<long long, std::__1::ratio<1ll, 1000ll> > const&) in Dropbox(sync.o)
      std::__1::cv_status std::__1::condition_variable::wait_for<long, std::__1::ratio<3600ll, 1ll> >(std::__1::unique_lock<std::__1::mutex>&, std::__1::chrono::duration<long, std::__1::ratio<3600ll, 1ll> > const&) in Dropbox(api.o)
  "std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::assign(char const*)", referenced from:
      dbx_access_info::is_valid(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >&) const in Dropbox(sync.o)
      dbx_api_account_info(dbx_account*, std::__1::unique_ptr<dbx_account_info, dbx_account_info_deleter>*, std::__1::unique_ptr<dbx_access_info, std::__1::default_delete<dbx_access_info> >*, HttpRequester&, int) in Dropbox(api.o)
      dbx_build_url_with_params(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, std::initializer_list<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > const&, std::initializer_list<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > const&) in Dropbox(util.o)
  "std::__1::__throw_system_error(int, char const*)", referenced from:
      std::__1::unique_lock<std::__1::mutex>::unlock() in Dropbox(transfer.o)
      std::__1::unique_lock<std::__1::mutex>::lock() in Dropbox(transfer.o)
  "std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::append(char const*, unsigned long)", referenced from:
      dbx_build_url_with_params(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, std::initializer_list<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > const&, std::initializer_list<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > const&) in Dropbox(util.o)
  "std::__1::condition_variable::wait(std::__1::unique_lock<std::__1::mutex>&)", referenced from:
      LifecycleManager::shutdown() in Dropbox(init.o)
      dbx_env::log_upload_thread() in Dropbox(env.o)
  "std::nothrow", referenced from:
      _dropbox_env_init in Dropbox(init.o)
      _dropbox_account_init in Dropbox(init.o)
      HttpRequester::create(dbx_env*, LifecycleManager&, std::__1::mutex*, void*, void (*)(void*)) in Dropbox(env.o)
      dbx_api_account_info(dbx_account*, std::__1::unique_ptr<dbx_account_info, dbx_account_info_deleter>*, std::__1::unique_ptr<dbx_access_info, std::__1::default_delete<dbx_access_info> >*, HttpRequester&, int) in Dropbox(api.o)
      ThreadLocal<dbx_error_buf>::get() in Dropbox(util.o)
  "std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::~basic_string()", referenced from:
      dbx_env::~dbx_env() in Dropbox(init.o)
      build_authed_url(dbx_account const*, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, std::initializer_list<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > const&) in Dropbox(api.o)
      dbx_request_json(dbx_account*, HttpRequester&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, std::initializer_list<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > const&, char const*, int, std::initializer_list<int> const&, std::__1::unique_ptr<json_t, json_deleter>&) in Dropbox(api.o)
      _dropbox_api_unlink in Dropbox(api.o)
      dbx_api_account_info(dbx_account*, std::__1::unique_ptr<dbx_account_info, dbx_account_info_deleter>*, std::__1::unique_ptr<dbx_access_info, std::__1::default_delete<dbx_access_info> >*, HttpRequester&, int) in Dropbox(api.o)
      dbx_upload_log_file(dbx_env const*, HttpRequester&, char const*, long long, long long, char const*, long long) in Dropbox(api.o)
      dbx_build_url_with_params(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, std::initializer_list<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > const&, std::initializer_list<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > const&) in Dropbox(util.o)
      ...
  "std::__1::condition_variable::notify_all()", referenced from:
      LifecycleManager::kick_cvars() in Dropbox(init.o)
      LifecycleManager::ThreadRegistration::~ThreadRegistration() in Dropbox(transfer.o)
      LifecycleManager::ThreadRegistration::ThreadRegistration(LifecycleManager&) in Dropbox(transfer.o)
      dbx_env::dump_log_buffer() const in Dropbox(env.o)
      dbx_env::log_upload_thread() in Dropbox(env.o)
  "std::__1::condition_variable::~condition_variable()", referenced from:
      _dropbox_account_init in Dropbox(init.o)
      _dropbox_account_destroy in Dropbox(init.o)
      dbx_env::~dbx_env() in Dropbox(init.o)
      __GLOBAL__I_a in Dropbox(env.o)
  "std::__1::mutex::unlock()", referenced from:
      _dropbox_set_online in Dropbox(init.o)
      _dropbox_lib_setup in Dropbox(init.o)
      _dropbox_env_shutdown in Dropbox(init.o)
      _dropbox_account_init in Dropbox(init.o)
      _dropbox_account_shutdown in Dropbox(init.o)
      void LifecycleManager::all_lock_helper<void, dropbox_set_online::$_0>(vq_node<std::__1::mutex&>*, dropbox_set_online::$_0) in Dropbox(init.o)
      LifecycleManager::shutdown() in Dropbox(init.o)
      ...
  "operator new(unsigned long, std::nothrow_t const&)", referenced from:
      _dropbox_env_init in Dropbox(init.o)
      _dropbox_account_init in Dropbox(init.o)
      HttpRequester::create(dbx_env*, LifecycleManager&, std::__1::mutex*, void*, void (*)(void*)) in Dropbox(env.o)
      dbx_api_account_info(dbx_account*, std::__1::unique_ptr<dbx_account_info, dbx_account_info_deleter>*, std::__1::unique_ptr<dbx_access_info, std::__1::default_delete<dbx_access_info> >*, HttpRequester&, int) in Dropbox(api.o)
      ThreadLocal<dbx_error_buf>::get() in Dropbox(util.o)
  "std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::push_back(char)", referenced from:
      dbx_api_account_info(dbx_account*, std::__1::unique_ptr<dbx_account_info, dbx_account_info_deleter>*, std::__1::unique_ptr<dbx_access_info, std::__1::default_delete<dbx_access_info> >*, HttpRequester&, int) in Dropbox(api.o)
      dbx_url_encode(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&) in Dropbox(util.o)
      dbx_build_url_with_params(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, std::initializer_list<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > const&, std::initializer_list<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > const&) in Dropbox(util.o)
  "std::__1::condition_variable::__do_timed_wait(std::__1::unique_lock<std::__1::mutex>&, std::__1::chrono::time_point<std::__1::chrono::system_clock, std::__1::chrono::duration<long long, std::__1::ratio<1ll, 1000000000ll> > >)", referenced from:
      std::__1::cv_status std::__1::condition_variable::wait_for<long long, std::__1::ratio<1ll, 1000ll> >(std::__1::unique_lock<std::__1::mutex>&, std::__1::chrono::duration<long long, std::__1::ratio<1ll, 1000ll> > const&) in Dropbox(sync.o)
      std::__1::cv_status std::__1::condition_variable::wait_for<long, std::__1::ratio<3600ll, 1ll> >(std::__1::unique_lock<std::__1::mutex>&, std::__1::chrono::duration<long, std::__1::ratio<3600ll, 1ll> > const&) in Dropbox(api.o)
  "std::__1::mutex::~mutex()", referenced from:
      _dropbox_account_init in Dropbox(init.o)
      _dropbox_account_destroy in Dropbox(init.o)
      dbx_env::~dbx_env() in Dropbox(init.o)
      __GLOBAL__I_a in Dropbox(init.o)
      __GLOBAL__I_a in Dropbox(env.o)
  "operator delete(void*)", referenced from:
      _dropbox_env_destroy in Dropbox(init.o)
      _dropbox_account_init in Dropbox(init.o)
      _dropbox_account_destroy in Dropbox(init.o)
      dbx_env::log_upload_thread() in Dropbox(env.o)
      std::__1::__function::__func<HttpRequester::HttpRequester(dbx_env*, LifecycleManager&, std::__1::mutex*, void*, void (*)(void*), void*)::'lambda'(), std::__1::allocator<HttpRequester::HttpRequester(dbx_env*, LifecycleManager&, std::__1::mutex*, void*, void (*)(void*), void*)::'lambda'()>, void ()>::~__func() in Dropbox(env.o)
      std::__1::__function::__func<HttpRequester::HttpRequester(dbx_env*, LifecycleManager&, std::__1::mutex*, void*, void (*)(void*), void*)::'lambda'(), std::__1::allocator<HttpRequester::HttpRequester(dbx_env*, LifecycleManager&, std::__1::mutex*, void*, void (*)(void*), void*)::'lambda'()>, void ()>::destroy_deallocate() in Dropbox(env.o)
      dbx_api_account_info(dbx_account*, std::__1::unique_ptr<dbx_account_info, dbx_account_info_deleter>*, std::__1::unique_ptr<dbx_access_info, std::__1::default_delete<dbx_access_info> >*, HttpRequester&, int) in Dropbox(api.o)
      ...
  "std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::__init(char const*, unsigned long)", referenced from:
      dbx_env::dbx_env(dbx_http const*, dbx_env_config const*) in Dropbox(init.o)
      build_authed_url(dbx_account const*, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, std::initializer_list<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > const&) in Dropbox(api.o)
      _dropbox_api_unlink in Dropbox(api.o)
      dbx_api_account_info(dbx_account*, std::__1::unique_ptr<dbx_account_info, dbx_account_info_deleter>*, std::__1::unique_ptr<dbx_access_info, std::__1::default_delete<dbx_access_info> >*, HttpRequester&, int) in Dropbox(api.o)
      dbx_upload_log_file(dbx_env const*, HttpRequester&, char const*, long long, long long, char const*, long long) in Dropbox(api.o)
  "std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::basic_string(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&)", referenced from:
      build_authed_url(dbx_account const*, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, std::initializer_list<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > const&) in Dropbox(api.o)
      dbx_upload_log_file(dbx_env const*, HttpRequester&, char const*, long long, long long, char const*, long long) in Dropbox(api.o)
  "std::__1::mutex::lock()", referenced from:
      _dropbox_set_online in Dropbox(init.o)
      _dropbox_lib_setup in Dropbox(init.o)
      _dropbox_env_shutdown in Dropbox(init.o)
      _dropbox_account_init in Dropbox(init.o)
      _dropbox_account_shutdown in Dropbox(init.o)
      void LifecycleManager::all_lock_helper<void, dropbox_set_online::$_0>(vq_node<std::__1::mutex&>*, dropbox_set_online::$_0) in Dropbox(init.o)
      LifecycleManager::shutdown() in Dropbox(init.o)
      ...
ld: symbol(s) not found for architecture armv7
clang: error: linker command failed with exit code 1 (use -v to see invocation)

Ld/Users/Zach/Library/Developer/Xcode/DerivedData/SnapDrop-fwwffwawcnkfwbxvokogcjaaahb/Build/Products/Debug-iphoneos/SnapDrop.app/SnapDrop-normal-armv7
cd/Users/Zach/Desktop/SnapDrop
setenv IPHONEOS_部署_目标7.0
setenv PATH“/Applications/Xcode5-DP3.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin:/Applications/Xcode5-DP3.app/Contents/Developer/usr/bin:/usr/sbin:/sbin”
/Applications/Xcode5-DP3.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang-arch-armv7-isysroot/Applications/Xcode5-DP3.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS7.0.sdk-L/Users/Zach/Library/Developer/Xcode/DerivedData/SnapDrop-fwwwwwwwwwwwwwwwcnkfwbvokogcjaaahb/Build-F/Users/Zach/Library/Developer/Xcode/DerivedData/SnapDrop-fwwffwawcnkfwbxvokogcjaaahb/Build/Products/Debug iphoneos-F/Users/Zach/Desktop/SnapDrop-F/Users/Zach/Desktop/SnapDrop/../../Downloads/dropbox-ios-sync-sdk-1-1.1.0-文件列表/Users/Zach/Library/Developer/Xcode/DerivedData/SnapDrop-fwwffwawcnkfwbxvokogcjaaahb/Build/Intermediates/SnapDrop.Build/Debug-iphoneos/SnapDrop.Build/Objects-normal/armv7/SnapDrop.LinkFileList-dead_strip-fobjc-fobjc-link-runtime-miphoneos-version=7.0-framework-Dropbox-QuartzCore-framework-SystemConfiguration-framework安全性-框架UIKIT——框架UIKITE——框架基础- XLIKER -依赖性信息-XLink /用户/扎克/库/开发者/ XCODE/派生数据/FHWFFWAWCNKFBXVKOGCJAAHB/Bug／中间/ SnAPDROP.Budid/Debug G-iPoeOS/SnAPDROP.Bu建d/Objist-Noal/ARMV7/SnAPDROPIP-RealthyCyNo.IOF.DAT-O/Users/Zach/Library/Developer/Xcode/DerivedData/SnapDrop fwwffwawcnkfwbxvokogcjaaahb/Build/Products/Debug iphoneos/SnapDrop.app/SnapDrop
架构armv7的未定义符号：
“std:：_1:：基本_字符串：：追加（char const*）”，引用自：
Dropbox（api.o）中的dbx_api_account_信息（dbx_account*，std:：_1:：unique_ptr*，std:：_1:：unique_ptr*，HttpRequester&，int）
Dropbox（util.o）中的dbx\u url\u编码（std:：\u 1:：basic\u string const&）
在Dropbox（util.o）中使用参数（std:uuuu 1:：basic:uu字符串常量&，std:：uuu 1:：basic u字符串常量&，std:：initializer(列表常量&，std:：initializer)构建url)
“运算符新（无符号长）”引用自：
std:：_1:：_函数：：_函数：：_克隆（）常量在Dropbox（env.o）中
“std:：_1:：基本_字符串：：保留（无符号长）”引用自：
Dropbox（api.o）中的dbx_api_account_信息（dbx_account*，std:：_1:：unique_ptr*，std:：_1:：unique_ptr*，HttpRequester&，int）
Dropbox（util.o）中的dbx\u url\u编码（std:：\u 1:：basic\u string const&）
在Dropbox（util.o）中使用参数（std:uuuu 1:：basic:uu字符串常量&，std:：uuu 1:：basic u字符串常量&，std:：initializer(列表常量&，std:：initializer)构建url)
“std:：_1:：chrono:：system_clock:：now（）”，引用自：
在Dropbox（sync.o）中的std:：_1:：cv_status std:：_1:：condition_variable:：wait_（std:：_1:：unique_lock&，std:_1:：chrono:：duration const&）
Dropbox（api.o）中的std:：：_1:：cv_status std:：_1:：condition_variable:：wait_（std:：_1:：unique_lock&，std:：_u1:：chrono:：duration const&）
“std:：_1:：chrono:：Stadible_clock:：now（）”，引用自：
在Dropbox（sync.o）中的std:：_1:：cv_status std:：_1:：condition_variable:：wait_（std:：_1:：unique_lock&，std:_1:：chrono:：duration const&）
Dropbox（api.o）中的std:：：_1:：cv_status std:：_1:：condition_variable:：wait_（std:：_1:：unique_lock&，std:：_u1:：chrono:：duration const&）
“std:：_1:：基本字符串：：赋值（char const*）”，引用自：
dbx\u访问\u信息：：是否在Dropbox（sync.o）中有效（std:：\uu 1：：基本字符串&）常量
Dropbox（api.o）中的dbx_api_account_信息（dbx_account*，std:：_1:：unique_ptr*，std:：_1:：unique_ptr*，HttpRequester&，int）
在Dropbox（util.o）中使用参数（std:uuuu 1:：basic:uu字符串常量&，std:：uuu 1:：basic u字符串常量&，std:：initializer(列表常量&，std:：initializer)构建url)
“std:：_1:：_抛出系统错误（int，char const*）”，引用自：
Dropbox（transfer.o）中的std:：_1:：unique_lock:：unlock（）
Dropbox（transfer.o）中的std:：_1:：unique_lock:：lock（）
“std:：_1:：basic_string:：append（char const*，unsigned long）”，引用自：
在Dropbox（util.o）中使用参数（std:uuuu 1:：basic:uu字符串常量&，std:：uuu 1:：basic u字符串常量&，std:：initializer(列表常量&，std:：initializer)构建url)
“std:：_1:：条件变量：：等待（std:：_1:：唯一锁定&）”，引用自：
Dropbox（init.o）中的LifecycleManager:：shutdown（）
dbx_env:：Dropbox（env.o）中的log_upload_thread（）
“std:：nothrow”，引用自：
_dropbox中的dropbox_env_init（init.o）
_dropbox\u帐户\u在dropbox中初始化（init.o）
HttpRequester:：在Dropbox（env.o）中创建（dbx_env*，LifecycleManager&，std:：__1:：mutex*，void*，void（*）（void*））
Dropbox（api.o）中的dbx_api_account_信息（dbx_account*，std:：_1:：unique_ptr*，std:：_1:：unique_ptr*，HttpRequester&，int）
Dropbox（util.o）中的ThreadLocal:：get（）
“std:：uu 1:：basic_string:：~basic_string（）”，引用自：
dbx_env:：~dbx_env（）位于Dropbox（init.o）中
在Dropbox（api.o）中生成经过身份验证的url（dbx\u account const*，std:：\uu 1:：basic\u string const&，std:：\uu 1:：basic\u string const&，std:：initializer\u list const&）
dbx_请求_json（dbx_帐户*，HttpRequester&，std:：uu 1:：基本字符串常量&，std:：uu 1:：基本字符串常量&，std:：初始值设定项列表常量&，字符常量*，int，std:：初始值设定项列表c