namespace "std" has no member "thread"

[PikaMeow]

When I use the std::thread in my code, there will be an error like this:

But I can click "go to the declaration" on it, and jump to file "thread" and see the class definiton of thread:

I use cygwin environment on Windows, here is my include_path in c_cpp_properties.json:

"includePath": [
        "C:\\cygwin64\\usr\\include",
        "C:\\cygwin64\\lib\\gcc\\x86_64-pc-cygwin\\5.4.0\\include",
        "C:\\cygwin64\\lib\\gcc\\x86_64-pc-cygwin\\5.4.0\\include\\c++",
        "C:\\cygwin64\\lib\\gcc\\x86_64-pc-cygwin\\5.4.0\\include\\c++\\x86_64-pc-cygwin",
        "${workspaceRoot}"
    ]

When I build with -std=c++11, I can run the program normally, I just can't eliminate the warning.
Did I miss some path? Or should I add some macro definition in the .json file?

[bobbrow]

what does gcc report as the default include path when you run gcc -v -E -x c++ -? You should copy whatever gcc tells you into your includePath for best results.

[bobbrow]

Also, please make sure you set the "intelliSenseMode" to "clang-x64" in the c_cpp_properties.json file if you haven't already.

[bobbrow]

Let us know if the suggestions above were unable to help you resolve your issue.

[alitoufighi]

I think this is a relevant issue. Above are my error with using mutex and my c_cpp_properties.json file. I added everything I saw on the Internet in it but still not working.

[sean-mcmanus]

@alitoufighi The "no type named" message doesn't come from our extension. Do you have another one installed?

[wrgallo]

VSCode Extensions > C/C++ > Extension Settings > C_CPP: Intelli Sense Engine > Set to "Tag Parser"

This solved the problem for me.

[bobbrow]

Using the "Tag Parser" engine will disable IntelliSense squiggles and remove semantic matches in the autocomplete list. It's not recommended unless you are using a specialized compiler that is incompatible with MSVC or GCC/Clang.

As this issue is quite dated, the information is old. You should use compilerPath in your configuration in c_cpp_properties.json to tell the extension where the system headers are. It is not recommended to add the system include paths directly to includePath anymore.

[bobbrow]

If you are having issues with red squiggles or getting the extension configured at all, please open a new issue and we'd be happy to help you troubleshoot it.