[c] How to fix "unable to open stdio.h in Turbo C" error?

Whenever I compile my program, I get the error above.

Do this: Open your turboc2 folder you have tc.exe file inside, beside this file you find another file as named as ' tcinst.exe ' open it.

You will see the installation menu:

select as-- > Option > Directory > Include directory

Here you have to change the path of the directory to the path where your INCLUDE folder is located. Same way change the path to library directory also over restart your tc.exe.

Check if you have anything like those stdio.h file and other header files under INCLUDE folder and LIB folder. LIB contains some files. In my case, I had the same issue but both of these folder were blank.. good to know. Steps:

1. Press: ALT + O + D (i.e. press ATL (keep pressed) and then O english character) and then D).
2. You'll see a popup window.

3. This window will have values for INCLUDE and LIB directories. The by default value for these two boxes in the popup window are: Drive leter where you installed TC... i.e. C:\ or D:\ or whatever followed by the path for INCLUDE and LIB folder. So, in my case,

   INCLUDE box was set to: "C:\TC\INCLUDE" and LIB directory value box was set to: "C:\TC\LIB" (without quotes). Steps to resolve:

4. Press ALT + C.

5. Set your current directory as C:\TC\BGI
6. Press ALT + O + D, and put ../INCLUDE and ../LIB in Include/Lib directory values.
7. and now... when you'll run your progress, you'll say thanks to me. I like the archduchess C fractal graphics that I'm running on DOS Turbo C right now. Lol.

If you have problems like that, first of all your TC folder put in to the C:..drive. after completing installation open turbo c blue screen. there is a OPTIONS > Directories ..in that you can see for option to set up path..

1. include directories..you can set path there now.. C:\TC\INCUDE
2. libraries Directories..you can set path there...C:\TC\LIB
3. if you want to store your output in BIN then you can set..C:\TC\BIN..otherwise you can set another path where you want to store your output..

Finally you can give OK and finished processes.. It will now work properly

Well, I've been working backshift just spent about 6 hours trying to figure this out.

All of the above information led to this conclusion along with a single line in dos prompt screen, when I exited the editor, go to the dos prompt my C: drive is mounted.

I did a dir search and what I found was: the way in which I had mounted the C drive initially looked like this

mount c: /

and my dir did not list all files on the C drive only files within the turboc++ folder. From that I had drawn the conclusion that my directories should look like:

c:\include

not

c:\turboc++\tc\include

or

c:\tc\include

The real problem was the nature in which I had mounted the drive.

Hope this helps someone.

b.mac

Since you did not mention which version of Turbo C this method below will cover both v2 and v3.

• Click on 'Options', 'Directories', enter the proper location for the Include and Lib directories.

Make sure the folder with the standard header files is in the projects path.

I don't know where this is in Turbo C, but I would think there's a way of doing this.

On most systems, you'd have to be trying fairly hard not to find '<stdio.h>', to the point where the first reaction is "is <stdio.h> installed". So, I'd be looking to see if the file exists in a plausible location. If not, then your installation of Turbo C is broken; reinstall. If you can find it, then you will have to establish why the compiler is not searching for it in the right place - what are the compiler options you've specified and where is the compiler searching for its headers (and why isn't it searching where the header is).

Check your environment include path. The file is not in the locations pointed by that environment variable.

First check whether the folder name is right or wrong since while you copying to one folder from other accidently it takes other folder address eg it take C instead of F So from OPTION>DIRECTORY change the folder name

Just Re install the turbo C++ from your Computer and install again in the Directory C:\TC\ Folder.

Again The Problem exists ,then change the directory from FILE>>CHANGE DIRECTORY to C:\TC\BIN\

Go to OPTIONS tab then select directories option then enter the particular path where your turbo c folder exists.

Enter the path in all the four message boxes and it would start working like it did in my case. I have TurboC3 and all the files were together in one common root folder.