>, conduit_cpp::Node&) const’:
paraview/master/src/paraview/VTK/ThirdParty/ioss/vtkioss/catalyst/Iocatalyst_DatabaseIO.C:881:39: error: ‘class conduit_cpp::Node’ has no member named ‘number_of_elements’
881 | int num_get = t_node.number_of_elements();
```
---
### Author:  [@Christos\_Tsolakis](https://discourse.paraview.org/u/Christos_Tsolakis)
#### Post date: [September 4, 2024, 2:05pm UTC](https://discourse.paraview.org/t/paraview-compilation-errors-with-catalyst-enabled-paraview-5-13-0-rc2/15345/2 "2024-09-04T14:05:24Z")
There were some fixes in the final 5.13 version related to Ioss. You may want to try the `v5.13.0` tag instead of the RC2.
---
### Author:  [@gsabhishek](https://discourse.paraview.org/u/gsabhishek)
#### Post date: [September 5, 2024, 4:55am UTC](https://discourse.paraview.org/t/paraview-compilation-errors-with-catalyst-enabled-paraview-5-13-0-rc2/15345/3 "2024-09-05T04:55:30Z")
Unfortunately the error persists in 5.13.0 as well.
In 5.12.1, 5.12.0 I get the following error
```auto
In file included from usr/shared/tools/centos/7/catalyst/HPCX/2.0.0/include/catalyst-2.0/conduit.h:19,
paraview/master/src/paraview/Clients/InSitu/vtkInSituInitializationHelper.cxx:9:
centos/7/catalyst/HPCX/2.0.0/include/catalyst-2.0/conduit_node.h:35:15: error: conflicting declaration ‘typedef void conduit_node’
35 | typedef void conduit_node;
| ^ ~~~~~~~~~~~
In file included from paraview/master/src/paraview/Clients/InSitu/vtkInSituInitializationHelper.cxx:3:
paraview/master/src/paraview/Clients/InSitu/vtkInSituInitializationHelper.h:45:34: note: previous declaration as ‘typedef struct conduit_node_impl conduit_node’
45 | typedef struct conduit_node_impl conduit_node;
| ^ ~~~~~~~~~~~
make[2]: *** [Clients/InSitu/CMakeFiles/InSitu.dir/vtkInSituInitializationHelper.cxx.o] Error 1
make[1]: *** [Clients/InSitu/CMakeFiles/InSitu.dir/all] Error 2
make: *** [all] Error 2
```
---
### Author:  [@ben.boeckel](https://discourse.paraview.org/u/ben.boeckel)
#### Post date: [September 5, 2024, 10:26am UTC](https://discourse.paraview.org/t/paraview-compilation-errors-with-catalyst-enabled-paraview-5-13-0-rc2/15345/4 "2024-09-05T10:26:55Z")
I think that Catalyst install is out of date here. I changed this `typedef` in Conduit 0.8.0 (via [this PR](https://github.com/LLNL/conduit/pull/795)). This was pulled into Catalyst 2.0.0-rc1 via [this MR](https://gitlab.kitware.com/paraview/catalyst/-/merge_requests/62). Where is this Catalyst from? It seems to be a pre-RC build rather than a full release.
---
### Author:  [@gsabhishek](https://discourse.paraview.org/u/gsabhishek)
#### Post date: [September 5, 2024, 11:13am UTC](https://discourse.paraview.org/t/paraview-compilation-errors-with-catalyst-enabled-paraview-5-13-0-rc2/15345/5 "2024-09-05T11:13:19Z")
Thanks.
I was using a very old catalyst. With the new catalyst-2.0.0 I was able to build 5.13.0 successfully