helix cpp "iostream" file not found

[jhpetrichor]

I use helix as my c/c++ editor（ubuntu 22.04）, but recently I have a problem that I have not been able to solve. clangd tells me ""iostream" file not found (pp_file_not_found)".

[pascalkuthe]

You need to properly configure clangd woth a compliecommands database. This is not an issue with helix and just how c/c++ tooling always works

[jeremie2]

I had the same problem and found this solution (second post): https://stackoverflow.com/questions/74785927/clangd-doesnt-recognize-standard-headers
Basically a libstdc++ package was missing.

On Ubuntu 24.04 I've installed libstdc++-14-dev

This solved Helix error messages when using the standard library like #include <iostream>.
Unfortunately I still have errors when using external library like #include <fmt/core.h>.