我刚刚通过 brew 安装了 ZMQ 库，我可以看到 /usr/local/include 和 /usr/local/bin 中的文件，但是当我将这些路径添加到 XCode 中的标题搜索路径和库搜索路径时，我无法使用#include，因为它继续告诉我它找不到找到。
即使我将 /usr/local/Cellar/zeromq/4.1.4/include （安装实际库的位置）添加到标题搜索路径，即使该文件存在于其中，它仍然找不到 zmq.h。
我应该怎么办？
编辑：
完整的源代码只是 ZMQ 他们自己的一个示例文件，
//
// Hello World client in C++
// Connects REQ socket to tcp://localhost:5555
// Sends "Hello" to server, expects "World" back
//
#include <zmq.h>
#include <string>
#include <iostream>
int main ()
{
// Prepare our context and socket
zmq::context_t context (1);
zmq::socket_t socket (context, ZMQ_REQ);
std::cout << "Connecting to hello world server…" << std::endl;
socket.connect ("tcp://localhost:5555");
// Do 10 requests, waiting each time for a response
for (int request_nbr = 0; request_nbr != 10; request_nbr++) {
zmq::message_t request (5);
memcpy (request.data (), "Hello", 5);
std::cout << "Sending Hello " << request_nbr << "…" << std::endl;
socket.send (request);
// Get the reply.
zmq::message_t reply;
socket.recv (&reply);
std::cout << "Received World " << request_nbr << std::endl;
}
return 0;
}
确切的错误只是“词法或预处理器问题，找不到'zmq.h'文件main.cpp ”
CompileC /Users/zezioen/Library/Developer/Xcode/DerivedData/ndovTest-bktygajikpscajfbqwlwhyjknvzq/Build/Intermediates/ndovTest.build/Debug/ndovTest.build/Objects-normal/x86_64/main.o ndovTest/main.cpp normal x86_64 c++ com.apple.compilers.llvm.clang.1_0.compiler
cd /Users/zezioen/stack/Projecten/CPP/ndovTest
export LANG=en_US.US-ASCII
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -x c++ -arch x86_64 -fmessage-length=0 -fdiagnostics-show-note-include-stack -fmacro-backtrace-limit=0 -std=gnu++11 -stdlib=libc++ -fmodules -gmodules -fmodules-cache-path=/Users/zezioen/Library/Developer/Xcode/DerivedData/ModuleCache -fmodules-prune-interval=86400 -fmodules-prune-after=345600 -fbuild-session-file=/Users/zezioen/Library/Developer/Xcode/DerivedData/ModuleCache/Session.modulevalidation -fmodules-validate-once-per-build-session -Wnon-modular-include-in-framework-module -Werror=non-modular-include-in-framework-module -Wno-trigraphs -fpascal-strings -O0 -fno-common -Wno-missing-field-initializers -Wno-missing-prototypes -Werror=return-type -Wunreachable-code -Werror=deprecated-objc-isa-usage -Werror=objc-root-class -Wno-non-virtual-dtor -Wno-overloaded-virtual -Wno-exit-time-destructors -Wno-missing-braces -Wparentheses -Wswitch -Wunused-function -Wno-unused-label -Wno-unused-parameter -Wunused-variable -Wunused-value -Wempty-body -Wconditional-uninitialized -Wno-unknown-pragmas -Wno-shadow -Wno-four-char-constants -Wno-conversion -Wconstant-conversion -Wint-conversion -Wbool-conversion -Wenum-conversion -Wshorten-64-to-32 -Wno-newline-eof -Wno-c++11-extensions -DDEBUG=1 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.11.sdk -fasm-blocks -fstrict-aliasing -Wdeprecated-declarations -Winvalid-offsetof -mmacosx-version-min=10.11 -g -fvisibility-inlines-hidden -Wno-sign-conversion -I/Users/zezioen/Library/Developer/Xcode/DerivedData/ndovTest-bktygajikpscajfbqwlwhyjknvzq/Build/Intermediates/ndovTest.build/Debug/ndovTest.build/ndovTest.hmap -I/Users/zezioen/Library/Developer/Xcode/DerivedData/ndovTest-bktygajikpscajfbqwlwhyjknvzq/Build/Products/Debug/include -Iusr/local/include -I/Users/zezioen/Library/Developer/Xcode/DerivedData/ndovTest-bktygajikpscajfbqwlwhyjknvzq/Build/Intermediates/ndovTest.build/Debug/ndovTest.build/DerivedSources/x86_64 -I/Users/zezioen/Library/Developer/Xcode/DerivedData/ndovTest-bktygajikpscajfbqwlwhyjknvzq/Build/Intermediates/ndovTest.build/Debug/ndovTest.build/DerivedSources -F/Users/zezioen/Library/Developer/Xcode/DerivedData/ndovTest-bktygajikpscajfbqwlwhyjknvzq/Build/Products/Debug -MMD -MT dependencies -MF /Users/zezioen/Library/Developer/Xcode/DerivedData/ndovTest-bktygajikpscajfbqwlwhyjknvzq/Build/Intermediates/ndovTest.build/Debug/ndovTest.build/Objects-normal/x86_64/main.d --serialize-diagnostics /Users/zezioen/Library/Developer/Xcode/DerivedData/ndovTest-bktygajikpscajfbqwlwhyjknvzq/Build/Intermediates/ndovTest.build/Debug/ndovTest.build/Objects-normal/x86_64/main.dia -c /Users/zezioen/stack/Projecten/CPP/ndovTest/ndovTest/main.cpp -o /Users/zezioen/Library/Developer/Xcode/DerivedData/ndovTest-bktygajikpscajfbqwlwhyjknvzq/Build/Intermediates/ndovTest.build/Debug/ndovTest.build/Objects-normal/x86_64/main.o
/Users/zezioen/stack/Projecten/CPP/ndovTest/ndovTest/main.cpp:6:10: fatal error: 'zmq.h' file not found
#include <zmq.h>
^
1 error generated.
编辑2：
我不知道发生了什么，但我只是重新创建了整个项目，执行了与以前完全相同的步骤，现在它可以正常编译和运行。
我使用的项目是不久前的项目，所以可能还有其他问题导致了问题。