我最近买了一台新的MacBook，我转移了我的旧会话。从那时起，在我升级到10.13之后，我无法得到任何包括iostream在内的任何东西。 鉴于此计划：
#include <iostream>
int main(void)
{
std::cout << "Hello world !" << std::endl;
return 0;
}
在g++ main.cpp时给出我的输出：
In file included from main.cpp:1:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/iostream:38:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/ios:216:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/__locale:15:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/string:470:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/string_view:171:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/__string:56:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/algorithm:640:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/memory:629:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/typeinfo:61:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/exception:82:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/cstdlib:86:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/stdlib.h:94:
In file included from /usr/include/stdlib.h:65:
In file included from /usr/include/sys/wait.h:110:
In file included from /usr/include/sys/resource.h:72:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/stdint.h:119:
In file included from /usr/local/include/stdint.h:82:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/inttypes.h:247:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/clang/9.0.0/include/inttypes.h:30:
/usr/include/inttypes.h:235:8: error: unknown type name 'intmax_t'
extern intmax_t
^
/usr/include/inttypes.h:236:9: error: unknown type name 'intmax_t'
imaxabs(intmax_t j);
^
/usr/include/inttypes.h:240:2: error: unknown type name 'intmax_t'
intmax_t quot;
^
/usr/include/inttypes.h:241:2: error: unknown type name 'intmax_t'
intmax_t rem;
^
/usr/include/inttypes.h:246:9: error: unknown type name 'intmax_t'
imaxdiv(intmax_t __numer, intmax_t __denom);
^
/usr/include/inttypes.h:246:27: error: unknown type name 'intmax_t'
imaxdiv(intmax_t __numer, intmax_t __denom);
^
/usr/include/inttypes.h:250:8: error: unknown type name 'intmax_t'
extern intmax_t
^
/usr/include/inttypes.h:256:8: error: unknown type name 'uintmax_t'; did you
mean 'uintptr_t'?
extern uintmax_t
^
/usr/include/sys/_types/_uintptr_t.h:30:24: note: 'uintptr_t' declared here
typedef unsigned long uintptr_t;
^
In file included from main.cpp:1:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/iostream:38:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/ios:216:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/__locale:15:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/string:470:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/string_view:171:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/__string:56:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/algorithm:640:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/memory:629:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/typeinfo:61:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/exception:82:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/cstdlib:86:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/stdlib.h:94:
In file included from /usr/include/stdlib.h:65:
In file included from /usr/include/sys/wait.h:110:
In file included from /usr/include/sys/resource.h:72:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/stdint.h:119:
In file included from /usr/local/include/stdint.h:82:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/inttypes.h:247:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/clang/9.0.0/include/inttypes.h:30:
/usr/include/inttypes.h:263:8: error: unknown type name 'intmax_t'
extern intmax_t
^
/usr/include/inttypes.h:269:8: error: unknown type name 'uintmax_t'; did you
mean 'uintptr_t'?
extern uintmax_t
^
/usr/include/sys/_types/_uintptr_t.h:30:24: note: 'uintptr_t' declared here
typedef unsigned long uintptr_t;
^
In file included from main.cpp:1:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/iostream:38:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/ios:216:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/__locale:15:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/string:470:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/string_view:171:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/__string:56:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/algorithm:640:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/memory:629:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/typeinfo:61:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/exception:82:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/cstdlib:86:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/stdlib.h:94:
In file included from /usr/include/stdlib.h:65:
In file included from /usr/include/sys/wait.h:110:
/usr/include/sys/resource.h:197:2: error: unknown type name 'uint64_t'
uint64_t ri_user_time;
^
/usr/include/sys/resource.h:198:2: error: unknown type name 'uint64_t'
uint64_t ri_system_time;
^
/usr/include/sys/resource.h:199:2: error: unknown type name 'uint64_t'
uint64_t ri_pkg_idle_wkups;
^
/usr/include/sys/resource.h:200:2: error: unknown type name 'uint64_t'
uint64_t ri_interrupt_wkups;
^
/usr/include/sys/resource.h:201:2: error: unknown type name 'uint64_t'
uint64_t ri_pageins;
^
/usr/include/sys/resource.h:202:2: error: unknown type name 'uint64_t'
uint64_t ri_wired_size;
^
/usr/include/sys/resource.h:203:2: error: unknown type name 'uint64_t'
uint64_t ri_resident_size;
^
/usr/include/sys/resource.h:204:2: error: unknown type name 'uint64_t'
uint64_t ri_phys_footprint;
^
/usr/include/sys/resource.h:205:2: error: unknown type name 'uint64_t'
uint64_t ri_proc_start_abstime;
^
fatal error: too many errors emitted, stopping now [-ferror-limit=]
20 errors generated.
我尝试了以下方法：
Xcode-select --reset重置CLT这些解决方案都没有奏效，这开始让我发疯。有人有同样的问题并找到了解决方案吗？
编辑：Xcode C ++项目成功编译，仍然不明白为什么它不会在终端。
转移到macOS High Sierra之后，我遇到了完全相同的问题（虽然错误不一样，但相似）。
我通过将/usr/local/include重命名为/usr/local/include_old找到了一种解决方法（好吧，名称并不重要，只是g++/clang不再搜索此文件夹中的标题这一事实）。
今天我遇到了完全相同的问题，执行xcode-select --install后，一切正常！
升级到MacOS Mojave 10.14.4和Xcode 10.2后，我遇到了同样的问题
安装包/Library/Developer/CommandLineTools/Packages/macOS_SDK_headers_for_macOS_10.14.pkg后问题得到解决
我有一个类似的问题，升级到高sierra（和Xcode 9.1），我的标准制作报告不熟悉的警告。
它从/usr/local/include中提取了.h文件而不是（我认为的）标准/usr/include。例如，没有可用的zlib.h。
重新安装Xcode（谁声称也安装命令行版本）没有帮助。
根本没有/usr/include，但C ++系统包括可以通过clang --version报告的链接获得，但没有C包括。
在xcode-select --install并实际上“安装”命令行材料后，/usr/include填充了必要的C库，并开始编译而没有再次发出警告。
检查您的项目的标题搜索路径中是否包含“/ usr / local / include”。