'fatal error: 'wchar.h' file not found' error with the new macos 11.3 update

Question

我是 c++ 的新手（昨天才开始学习）。今天我将这个 macos 更新到 11.3，现在当我运行我在 clion 中的 c++ 代码时我得到这个错误，

====================[ Build | untitled | Debug ]================================
/Applications/CLion.app/Contents/bin/cmake/mac/bin/cmake --build /Users/nibin/CLionProjects/untitled/cmake-build-debug --target untitled -- -j 6
[ 50%] Building CXX object CMakeFiles/untitled.dir/main.cpp.o
clang: warning: no such sysroot directory: '/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX11.1.sdk' [-Wmissing-sysroot]
In file included from /Users/nibin/CLionProjects/untitled/main.cpp:1:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/iostream:37:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/ios:214:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/iosfwd:95:
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/wchar.h:119:15: fatal error: 'wchar.h' file not found
#include_next <wchar.h>
              ^~~~~~~~~
1 error generated.
make[3]: *** [CMakeFiles/untitled.dir/main.cpp.o] Error 1
make[2]: *** [CMakeFiles/untitled.dir/all] Error 2
make[1]: *** [CMakeFiles/untitled.dir/rule] Error 2
make: *** [untitled] Error 2

我上网搜索了一下，但一个字也听不懂。我确实尝试了一些并在我的终端中得到了这个，

➜  ~ xcode-select --install
xcode-select: error: command line tools are already installed, use "Software Update" to install updates
➜  ~ xcrun --show-sdk-path
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk
➜  ~ sudo xcode-select --switch /Library/Developer/CommandLineTools/
Password:
➜  ~ xcrun --show-sdk-path
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk

我已经拥有 xcode 工具并且是最新的。我尝试了一种改变路径的解决方案，但仍然没有用。所以我只是把文件带回了原来的位置，

➜  ~ sudo xcode-select --switch /Applications/Xcode.app/Contents/Developer/
➜  ~ xcrun --show-sdk-path
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk

我尝试了另一个解决方案，但出现错误，

➜  ~ open /Library/Developer/CommandLineTools/Packages/macOS_SDK_headers_for_macOS_10.14.pkg
The file /Library/Developer/CommandLineTools/Packages/macOS_SDK_headers_for_macOS_10.14.pkg does not exist.

我打开了 /Library/Developer/CommandLineTools/ 我得到了这个，

➜  ~ cd /Library/Developer/CommandLineTools
➜  CommandLineTools ls
Library SDKs    usr

一些涉及清除缓存的解决方案“删除当前项目和依赖项中的任何旧 CMakeCache.txt 并重建解决问题。”对不起，如果这听起来很愚蠢，但我不太明白。这是否意味着我们必须删除整个文件 CMakeCache.txt 还是仅删除内容。

Answer 1

“我们认为 Tools | CMake | Reset Cache and Reload project 在这种情况下应该有所帮助。” (https://intellij-support.jetbrains.com/hc/en-us/community/posts/360000919219-Clion-can-t-compile-because-of-wchar-h-not-found-after-updated-Mojave-in-mac-) 这对我有用

'fatal error: 'wchar.h' file not found' error with the new macos 11.3 update

'fatal error: 'wchar.h' file not found' error with the new macos 11.3 update

c++

sdk

xcode

wchar

xcode-command-line-tools