CLion C++ header files not found after macOS is updated to Catalina

Question

I am using CLion for my C++ projects. After I updated my macOS to Catalina, my C++ files cannot find <iostream>, etc anymore. I have read similar issues online but I couldn't find where to add the build path or find the header file path. If anyone can help me with this problem, thank you in advance.

Answer 1

Open CMake tab at the bottom Click CMake Settings: CMake Setttings

Inside CMake Settings

Press "Manage Toolchains"

Wait until CLion populates all the fields and press OK