Installation Error about go-face HOT 2 CLOSED

That's strange, your gcc version looks fine.

Does this work:

#include <stdio.h>
#include <mutex>
#include <shared_mutex>

int main() {
  std::shared_mutex mutex;
  std::unique_lock<std::shared_mutex> lock(mutex);
  printf("test\n");
  return 0;
}

g++ -std=c++1z -lpthread -o 1 1.cc

If not, maybe try install gcc 8.2.0/8.3.0/7.3.0/7.4.0. Also, make sure g++ --version is fine too.
Do you use environment variables like CXX by any chance?

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@Kagami thanks for a prompt response

my g++ version(5.4) wasn't consistent with the gcc version, got it fixed.
Thanks 👍

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