# Paraview 5.11.2 can't find external libharu
**URL:** https://discourse.paraview.org/t/paraview-5-11-2-cant-find-external-libharu/13914
**Category:** ParaView Support
**Created:** [February 11, 2024, 8:55pm UTC](https://discourse.paraview.org/t/paraview-5-11-2-cant-find-external-libharu/13914 "2024-02-11T20:55:37Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@adigitoleo](https://discourse.paraview.org/u/adigitoleo)
#### Post date: [February 11, 2024, 8:55pm UTC](https://discourse.paraview.org/t/paraview-5-11-2-cant-find-external-libharu/13914/1 "2024-02-11T20:55:37Z")
Hello.
I’m trying to build paraview locally, preferrably using external libs rather than bundled. I got as far as:
```sh
-- Could NOT find LibHaru (missing: LibHaru_LIBRARY) (found suitable version "2.4.0-dev", minimum required is "2.4.0")
CMake Error at VTK/CMake/vtkModule.cmake:4579 (message):
Could not find the LibHaru external dependency.
Call Stack (most recent call first):
VTK/CMake/vtkModule.cmake:5173 (vtk_module_find_package)
VTK/CMake/vtkModule.cmake:5044 (vtk_module_third_party_external)
VTK/ThirdParty/libharu/CMakeLists.txt:1 (vtk_module_third_party)
```
with the cmake command:
```sh
cmake -GNinja -DPARAVIEW_USE_PYTHON=ON -DPARAVIEW_USE_MPI=ON \
-DVTK_SMP_IMPLEMENTATION_TYPE=TBB -DPARAVIEW_BUILD_WITH_EXTERNAL=ON \
-Dutf8cpp_INCLUDE_DIR=/usr/include/vtk-9.2/vtkutf8 \
-DExprTk_INCLUDE_DIR=/usr/include/vtk-9.2/vtkexprtk \
-DLibHaru_INCLUDE_DIR=/usr/include/vtk-9.2/vtklibharu/include \
-DCMAKE_BUILD_TYPE=Release ..
```
At this point, I’m not sure how to proceed. The libharu include directory looks like this:
```sh
%zsh> ls /usr/include/vtk-9.2/vtklibharu/include
hpdf.h hpdf_config.h hpdf_encrypt.h hpdf_font.h hpdf_list.h hpdf_pages.h hpdf_utils.h
hpdf_3dmeasure.h hpdf_consts.h hpdf_encryptdict.h hpdf_fontdef.h hpdf_mmgr.h hpdf_pdfa.h hpdf_version.h
hpdf_annotation.h hpdf_destination.h hpdf_error.h hpdf_gstate.h hpdf_objects.h hpdf_streams.h vtk_haru_mangle.h
hpdf_catalog.h hpdf_doc.h hpdf_exdata.h hpdf_image.h hpdf_outline.h hpdf_types.h
hpdf_conf.h hpdf_encoder.h hpdf_ext_gstate.h hpdf_info.h hpdf_page_label.h hpdf_u3d.h
```
There is nothing else in `/usr/include/vtk-9.2/vtklibharu/` and the .so file is called `/usr/lib/libvtklibharu-9.2.so`.
My questions are:
- Is the libharu dependency strictly necessary? Can this be disabled?
- Can I get a more verbose error out of cmake somehow?
- Is it possible to use the `ThirdParty` libharu only, while still using external dependencies for the rest?
Thanks
---
### Author:  [@ben.boeckel](https://discourse.paraview.org/u/ben.boeckel)
#### Post date: [February 11, 2024, 10:48pm UTC](https://discourse.paraview.org/t/paraview-5-11-2-cant-find-external-libharu/13914/2 "2024-02-11T22:48:39Z")
What is happening here is that your `libharu` is not new enough. 2.4.0 has not been released and we require patches that have been sent to upstream but not released (or even merged in some cases).
> [@adigitoleo](#):
>
> Is the libharu dependency strictly necessary? Can this be disabled?
Probably not; `VTK_MODULE_ENABLE_VTK_libharu=NO` would tell the module system to turn anything that requires it off (with a message if this ends up trying to turn off something otherwise requested).
> [@adigitoleo](#):
>
> Is it possible to use the `ThirdParty` libharu only, while still using external dependencies for the rest?
Yes, `VTK_MODULE_USE_EXTERNAL_VTK_libharu=OFF`.
---
### Author:  [@adigitoleo](https://discourse.paraview.org/u/adigitoleo)
#### Post date: [February 16, 2024, 8:34am UTC](https://discourse.paraview.org/t/paraview-5-11-2-cant-find-external-libharu/13914/3 "2024-02-16T08:34:08Z")
Thank you, those flags were very helpful. I now got as far as SEACASIoss
and am failing because, even using either one of
```
VTK_MODULE_ENABLE_VTK_SEACASIoss=OFF
```
or
```
VTK_MODULE_USE_EXTERNAL_VTK_SEACASIoss=OFF
```
or their case variations (seacasioss? SEACASIOSS?) I’m not able to tell
cmake to stop looking for an external SEACAS lib. I don’t have one
installed and believe it is only needed for exodus2 file I/O (probably
mainly reading their meshes?) which I don’t require. I guess “Ioss” is
“input-output subsystem”? Either way, I wonder if there is a way to turn
this off as well.
Cheers.
---
### Author:  [@adigitoleo](https://discourse.paraview.org/u/adigitoleo)
#### Post date: [February 16, 2024, 8:46am UTC](https://discourse.paraview.org/t/paraview-5-11-2-cant-find-external-libharu/13914/4 "2024-02-16T08:46:01Z")
Please disregard the previous message, I found that the module is known
to cmake as simply `ioss` without the seacas prefix.