I’m running https://github.com/LeeTeng2001/metal-cpp-cmake in VS Code with the CMake extension. It builds targets just fine, but intellisense has over a hundred errors across my files. One example:

a class-qualified name is not allowed C/C++ (754) on line:

using NS::StringEncoding::UTF8StringEncoding;

Here is my c_cpp_properties.json:

{
    "configurations": [
        {
            "name": "Mac",
            "includePath": [
                "${workspaceFolder}/**"
            ],
            "defines": [],
            "macFrameworkPath": [
                "/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks"
            ],
            "compilerPath": "/usr/bin/clang",
            "cStandard": "c17",
            "cppStandard": "c++17",
            "intelliSenseMode": "macos-clang-arm64",
            "configurationProvider": "ms-vscode.cmake-tools"
        }
    ],
    "version": 4
}

Can anyone give instructions on how to open this project and get intellisense to work correctly?