C stdio.h no such file or directory

gcc worked perfectly fine until I updated to Ubuntu 16.04 and now when I run:

gcc file.c 

an error shows up:

file.c:1:18: fatal error: stdio.h: No such file or directory compilation terminated. 

I checked if stdio.h was there and it still was in /usr/include/stdio.h. Please help!

5 Answers

First run:

find /usr/include/ -name "stdio.h" 

If no files are returned, run:

sudo apt install --reinstall build-essential 

That will reinstall any missing files.

Run:

sudo apt install --reinstall gcc-5.4 

This reinstalls gcc. Reinstalling sometimes fixes problems.

Install missing library:

sudo apt install libc6-dev 

Going into the C/C++ Configurations and adding /usr/include/** fixed it for me.

Go to the View tab if you are using VSCode. Search for C/C++ edit configuration(UI). Copy/paste these paths to the include path section of the configuration.

/usr/include/ /usr/include/x86_64-linux-gnu /usr/include/linux /usr/include/c++/9/tr1 /usr/include/c++/9 

You have to paste these paths.

Save your .c file and run it as gcc /path in terminal.