VS2017: E0135 namespace “std” has no member “filesystem”

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A couple of options to investigate.

  • Check the language standard. You need C++17 or above:
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  • If your version of visual studio doesn’t support std::filesystem yet, you can try std::experimental::filesystem.

I have the following version and std::filesystem works (with the C++17 language selection shown above):

Microsoft Visual Studio Community 2017 Preview
Version 15.8.0 Preview 1.1
VisualStudio.15.Preview/15.8.0-pre.1.1+27705.2000

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