Question

最近我决定将GCM集成到已经使用Google Protocol Buffers的项目中。一切都很好，样品还可以。但是当我尝试通过CocoaPods将GCM集成到我的项目中时 - 我开始收到构建错误：

Undefined symbols for architecture x86_64:
"_GSDK_PBLogicalRightShift32", referenced from:
  _SerializedSize in libGcmLib.a(GCMSecureSocket.o)
"_OBJC_CLASS_$_GSDK_PBCodedOutputStream", referenced from:
  objc-class-ref in libGcmLib.a(GCMSecureSocket.o)
"_OBJC_CLASS_$_GSDK_PBDescriptor", referenced from:
  objc-class-ref in libGcmLib.a(GtalkCore.pb.o)
  objc-class-ref in libGcmLib.a(GtalkExtensions.pb.o)
"_OBJC_CLASS_$_GSDK_PBGeneratedMessage", referenced from:
  _OBJC_CLASS_$_GtalkHeartbeatPing in libGcmLib.a(GtalkCore.pb.o)
  _OBJC_CLASS_$_GtalkHeartbeatAck in libGcmLib.a(GtalkCore.pb.o)
  _OBJC_CLASS_$_GtalkErrorInfo in libGcmLib.a(GtalkCore.pb.o)
  _OBJC_CLASS_$_GtalkSetting in libGcmLib.a(GtalkCore.pb.o)
  _OBJC_CLASS_$_GtalkLoginRequest in libGcmLib.a(GtalkCore.pb.o)
  _OBJC_CLASS_$_GtalkLoginResponse in libGcmLib.a(GtalkCore.pb.o)
  _OBJC_CLASS_$_GtalkClose in libGcmLib.a(GtalkCore.pb.o)
  ...
"_OBJC_CLASS_$_GSDK_PBRootObject", referenced from:
  _OBJC_CLASS_$_GtalkGtalkCoreRoot in libGcmLib.a(GtalkCore.pb.o)
  _OBJC_CLASS_$_GtalkGtalkExtensionsRoot in libGcmLib.a(GtalkExtensions.pb.o)
"_OBJC_METACLASS_$_GSDK_PBGeneratedMessage", referenced from:
  _OBJC_METACLASS_$_GtalkHeartbeatPing in libGcmLib.a(GtalkCore.pb.o)
  _OBJC_METACLASS_$_GtalkHeartbeatAck in libGcmLib.a(GtalkCore.pb.o)
  _OBJC_METACLASS_$_GtalkErrorInfo in libGcmLib.a(GtalkCore.pb.o)
  _OBJC_METACLASS_$_GtalkSetting in libGcmLib.a(GtalkCore.pb.o)
  _OBJC_METACLASS_$_GtalkLoginRequest in libGcmLib.a(GtalkCore.pb.o)
  _OBJC_METACLASS_$_GtalkLoginResponse in libGcmLib.a(GtalkCore.pb.o)
  _OBJC_METACLASS_$_GtalkClose in libGcmLib.a(GtalkCore.pb.o)
  ...
"_OBJC_METACLASS_$_GSDK_PBRootObject", referenced from:
  _OBJC_METACLASS_$_GtalkGtalkCoreRoot in libGcmLib.a(GtalkCore.pb.o)
  _OBJC_METACLASS_$_GtalkGtalkExtensionsRoot in libGcmLib.a(GtalkExtensions.pb.o)

ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

我认为这是因为GCM库中有ProtocolBuffers，它与我从这里获得的Protobuf源相冲突： https://github.com/google/protobuf/tree/master/objectivec

我也尝试为设备构建并因此收到类似的错误 - 使用armv7而不是x86_64。另外我必须说，该示例项目工作正常，所以我认为Protobuf是这里的主要问题。不过，我不知道如何解决这个问题。有什么想法吗？

Answer 1

检查libGcmLib.a的体系结构和目标构建体系结构是否相同。

您可以使用命令

检查.a文件的体系结构

otool -hv libGcmLib.a

实际上，跟踪对象不是针对x86_64架构构建的。

GCMSecureSocket.o
GtalkCore.pb.o
...

如何构建libGcmLib.a静态库？回顾一下。

无法在Xcode中使用Protobuf构建GCM

1 个答案: