Sdl.h no such file or directory

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I have SDL set up in a project and want to also include the image and mixer libs ,but i get this error.

http://imgur.com/a/ltM93

What I have tried:

I don't know how these things work but the .h image lib shows up when I try to include it so i must be missing something

Posted 21-Mar-17 4:55am

Member 13049206

Updated 21-Mar-17 5:08am

Richard MacCutchan

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Richard MacCutchan 21-Mar-17 11:06am

The message is quite clear. The compiler cannot find that file within any of the default directories, or any of the ones in the include list. Make sure the file is in the proper place.

Member 13049206 21-Mar-17 11:35am

Again i don't really know how these things work,why doesn't the compiler find those but can find the SDL2 lib what's the difference

Richard MacCutchan 21-Mar-17 11:59am

The compiler does not use .lib files, they are used by the linker, and may be in different directories. If you do not understand the compilation and search rules then I suggest going to the documentation pages for the compiler in question.

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Jochen Arndt · Answer 1 · 2017-03-21T05:08:00

Solution 1

You have to tell the compiler where he should look for include files. This is usually done by using the -I command line option and environment variables. See also The C Preprocessor: Search Path[^].

When using an IDE, there is usually a configuration option to specify additional pathes (for the current project and gobally for all projects). Add there the path to your SDL.h file.

Note that similar applies to the .lib library files for which there are also path options.

Posted 21-Mar-17 5:08am

Jochen Arndt

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Member 13049206 21-Mar-17 11:32am

Mind telling me how to do it? i can't quite understand what u are saying

Jochen Arndt 21-Mar-17 11:52am

Ask yourself: Where is the file stored (full path)?

Execute on the command line:

gcc -v /dev/null -o /dev/null

Is the path listed (after "#include")?

If not, the compiler can not find the file. So you must tell the compiler about the path.

The simplest way to do this is using the IDE (Integrated Development Enviroment) you are using. Because you did not tell us which you are using, we can't help (from your image I can only see that you use the GCC compiler).

Read the documentation of the IDE. Or search the web "<name_of_ide> include path".

My problem is that I can't help you with a simple solution because you did not gave us some important information:
- Which OS (Windows, Linux, Mac)
- Whih IDE (e.g. Visual Studio, CodeBlocks, Dev C++)
- Which compiler (I got GCC from the image)

Member 13049206 21-Mar-17 12:08pm

I have windows 10 using Code::Blocks 16.01 with GCC

Jochen Arndt 21-Mar-17 12:59pm

See http://www.learncpp.com/cpp-tutorial/a3-using-libraries-with-codeblocks/

Member 13049206 21-Mar-17 13:35pm

I thought i did those , look at the photos what else do i need to do?

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Jochen Arndt 21-Mar-17 13:42pm

And is the file in one of those directories?
Note also that GCC is coming from the Linux world where file names are case sensitive (I'm not sure at the moment if this applies too to the Windows version).

In your initial question you are using

#include "SDL.h"

and in the above screen shot:

#include <SDL2/SDL.h>

Member 13049206 21-Mar-17 13:48pm

In main i always used #include <SDL2/SDL.h> , it's the only way i think , in the error it's written as #include "SDL.h" ,i tried to modify it to SDL2/SDL.h as is it in main but it still doesn't work , and yes the files are in the directories if they weren't it would probably give me an error while trying to include de headers

Jochen Arndt 21-Mar-17 14:12pm

You got an error while including that file:
"fatal error: SDL.h: no such file or directory"

But it looks like it is the source of the library.
Do you want to build the library?
That might require different configuration steps and should be documented at the SDL project page (how to build library with Windows)

Member 13049206 22-Mar-17 12:15pm

I just what the code to work.. what do you mean by building the library? is there another way i could compile without getting that error?

Jochen Arndt 22-Mar-17 12:32pm

I don't have access to your PC or know exactly what you are doing. So I can only guess.
You are compiling a piece of code (where did you got it from?) and got an error that is probably related to a wrong project setup.

You are even not showing the code or the exact error message but uploaded some images to external links. Most users here who might be able to answer will not open such image links.

The proper way to solve such problems:
- Post the related code lines (the error message includes file name and line number)
- Show the full error message
- Give information about used OS and tools
- With such errors as yours show the related project and tool configuration. Here: Pathes for include files and project make file

I know that you are new to programming but you should at least read the related doucmentation (here: the CodeBlocks IDE), know what libraries and header files are, and how a C++ application is build (the build steps of pre-processing, compiling, and linking). Without this knowledge you won't be able to understand any solution provided here.

Member 13049206 22-Mar-17 13:04pm

The code it's just something i put together after reading from the SDL wiki.I can write anything in SDL but can't use the image lib's for some reason.. Are you recommending opening a new question with more detalied information? i didn't at first beacuse i thought it was just a mistake

Jochen Arndt 22-Mar-17 13:09pm

Please use the green "Improve question" link to edit your question and add more information (the link is shown when moving the mouse to the right bottom of the question).