### Author:  [@ben.boeckel](https://discourse.vtk.org/u/ben.boeckel)
#### Post date: [October 17, 2023, 11:44am UTC](https://discourse.vtk.org/t/vtksys-configure-hxx/12495/2 "2023-10-17T11:44:39Z")
You’re missing VTK’s include directories. You should have them set up via CMake and, failing that, your code needs to have `#include ` and the `vtk-9.3` part provided via `-I`.
---
### Author:  [@Jens\_Munk\_Hansen](https://discourse.vtk.org/u/Jens_Munk_Hansen)
#### Post date: [October 17, 2023, 4:57pm UTC](https://discourse.vtk.org/t/vtksys-configure-hxx/12495/3 "2023-10-17T16:57:32Z")
Provided that you are using `CMake`, you can do something along the lines of
```
cmake_minimum_required(VERSION 3.8)
project(YourProjectName
LANGUAGES
CXX)
find_package(VTK 9.3 REQUIRED COMPONENTS
IOImage
# other packages that you need
)
add_executable(${PROJECT_NAME} main.cpp)
target_link_libraries(${PROJECT_NAME} PRIVATE
${VTK_LIBRARIES})
```
---
### Author:  [@Massi](https://discourse.vtk.org/u/Massi)
#### Post date: [October 18, 2023, 4:08am UTC](https://discourse.vtk.org/t/vtksys-configure-hxx/12495/4 "2023-10-18T04:08:14Z")
Many thanks for your reply!
I’m completely lost now with VTK, I dont know what I’m missing here. I know in the past it was not easy to setup.
I have built this time VTK8 instead of VTK9 for future dev with Qt library and I used CMake gui version.
I’m developing on a Linux machine and I’m using vscode as IDE.
I included all necessary headers, well part of them, in tasks.json file
```auto
/* VTK includes */
"--include-directory=/home/massilinux/VTK8/src/**",
"--include-directory=/home/massilinux/VTK8/build/**",
"--include-directory=/home/massilinux/VTK8/src/Interaction/Image",
"--include-directory=/home/massilinux/VTK8/src/Rendering/Core",
"--include-directory=/home/massilinux/VTK8/src/Common/ExecutionModel",
"--include-directory=/home/massilinux/VTK8/src/IO/Image",
"--include-directory=/home/massilinux/VTK8/src/Common/Core",
"--include-directory=/home/massilinux/VTK8/build/Common/Core",
"--include-directory=/home/massilinux/VTK8/build/IO/Image",
"--include-directory=/home/massilinux/VTK8/build/Common/ExecutionModel",
"--include-directory=/home/massilinux/VTK8/build/Interaction/Image",
"--include-directory=/home/massilinux/VTK8/build/Rendering/Core",
"--include-directory=/home/massilinux/VTK8/build/Filters/Core",
"--include-directory=/home/massilinux/VTK8/build/Utilities/KWIML",
"--include-directory=/home/massilinux/VTK8/src/Utilities/KWIML/vtkkwiml/include/kwiml",
"--include-directory=/home/massilinux/VTK8/src/Utilities/KWIML/vtkkwiml/",
```
All these includes seems laborious and the compilation still complain about missing header such as:
```auto
/home/massilinux/VTK8/build/Utilities/KWIML/vtk_kwiml.h:19:10: fatal error: vtkkwiml/abi.h: No such file or directory
19 | #include "vtkkwiml/abi.h"
```
I dont know why this header for reading just a PNG file. Any thoughts?
---
### Author:  [@Jens\_Munk\_Hansen](https://discourse.vtk.org/u/Jens_Munk_Hansen)
#### Post date: [October 18, 2023, 4:51pm UTC](https://discourse.vtk.org/t/vtksys-configure-hxx/12495/5 "2023-10-18T16:51:14Z")
If I were you, I would simply clone the `ImageViewer` in the `Examples/GUI/Qt` directory. Check if this works with your `Qt` installation. The examples are self-contained and search for `VTK` and `Qt`. Remember that the `Qt` directory should be the `lib/cmake/vtk-8` folder of your `Qt` build or your `Qt` installation.
---
### Author:  [@ben.boeckel](https://discourse.vtk.org/u/ben.boeckel)
#### Post date: [October 20, 2023, 12:48pm UTC](https://discourse.vtk.org/t/vtksys-configure-hxx/12495/6 "2023-10-20T12:48:04Z")
I would also suggest that you install VTK before using it; you should only need a handful of include paths, not one per module.
> [@Massi](#):
>
> I dont know why this header for reading just a PNG file. Any thoughts?
KWIML is used to know what 64bit types (`long`, `long long`, `__int64`) are available.
---
### Author:  [@Massi](https://discourse.vtk.org/u/Massi)
#### Post date: [October 23, 2023, 2:43am UTC](https://discourse.vtk.org/t/vtksys-configure-hxx/12495/8 "2023-10-23T02:43:46Z")
Thanks for your reply,
This is my c\_cpp\_properties file
```auto
{
"configurations": [
{
"name": "Linux",
"includePath": [
"${workspaceFolder}/**",
"${workspaceFolder}/*",
"/home/massilinux/VTK8/include/**",
"/usr/local/Qt-5.15.2/include/**",
"/usr/local/Qt-5.15.2/lib/**"
],
"defines": [
"_DEBUG",
"UNICODE",
"_UNICODE"
],
"compilerPath": "/usr/bin/clang",
"cStandard": "c17",
"cppStandard": "c++17",
"intelliSenseMode": "linux-clang-x64"
}
],
"version": 4
}
```
Is it enough ? because I’m still getting this error now:
```auto
/home/massilinux/Desktop/Project/ImageReader/ImageRead.hpp:18:10: fatal error: vtkImageReader2.h: No such file or directory
18 | #include
```
here is my code where the error occurs
```auto
/// @headerfile External headers
#include
/// @brief
namespace IMG
{
/// @brief
/// @tparam T
template < typename T = vtkImageReader2 >
class ImageRead : public IReader
{
public:
/// @brief
ImageRead();
/// @brief
~ImageRead() = default;
/// @brief
/// @param filepath
/// @return
auto setFileName(const char * filepath) -> void override;
/// @brief
auto display() -> void override;
/// @brief
/// @return
vtkAlgorithmOutput *getOutput() const override;
private:
std::unique_ptr mptr {nullptr};
};
} // namespace IMG
```
---
### Author:  [@ben.boeckel](https://discourse.vtk.org/u/ben.boeckel)
#### Post date: [October 23, 2023, 7:08pm UTC](https://discourse.vtk.org/t/vtksys-configure-hxx/12495/9 "2023-10-23T19:08:58Z")
It’ll fail if `vtkImageReader2`’s module is not enabled (`IO/Image`).
---
### Author:  [@Jens\_Munk\_Hansen](https://discourse.vtk.org/u/Jens_Munk_Hansen)
#### Post date: [October 23, 2023, 8:17pm UTC](https://discourse.vtk.org/t/vtksys-configure-hxx/12495/10 "2023-10-23T20:17:16Z")
I would really suggest that you use CMake. It will add the necessary include directories (they are many) both for VTK and Qt.