# Aeraulics install error **URL:** \ **Category:** Xcos\ **Created:** [June 9, 2024, 5:02am UTC](https://scilab.discourse.group/t/aeraulics-install-error/547 "2024-06-09T05:02:49Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![JIM](https://avatars.discourse-cdn.com/v4/letter/j/ac91a4/32.png) [@JIM](https://scilab.discourse.group/u/JIM)\ **Post date:** [June 9, 2024, 5:02am UTC](https://scilab.discourse.group/t/aeraulics-install-error/547/1 "2024-06-09T05:02:49Z")
Hello, I’m new to Scilab and xcos. This seems very usable tool for our purposes. Hopsan was too complex to learn. Right now I’m trying to simulate a pneumatic and vacuum system. I’m hoping the aeraulics library could be used in this. I was able to install Coselica just fine. Is there other pneumatic, vacuum or gas simulation components available? I’ve downloaded the aeraulics library from openeering and now I’m trying to install it. I extracted the zip package to C:\Program Files\scilab-2024.1.0\modules\xcos\_toolbox\_aeraulics\ and I made sure the files and folder are writable. And then I get the error below when loading the toolbox. exec loader.sce ```auto exec('C:\Program Files\scilab-2024.1.0\modules\xcos_toolbox_aeraulics\loader.sce',-1) "Pipe" at line 46 of executed file C:\Program Files\scilab-2024.1.0\modules\xcos_toolbox_aeraulics\loader.sce Undefined operation for the given operands. check or define function %c_a_ce for overloading. ``` Line 46 in loader.sce: scifile = pathconvert(wdir) + blockname + “.sci”; Thanks in advance Edits: submitted too early ---
**Author:** ![JIM](https://avatars.discourse-cdn.com/v4/letter/j/ac91a4/32.png) [@JIM](https://scilab.discourse.group/u/JIM)\ **Post date:** [June 9, 2024, 2:32pm UTC](https://scilab.discourse.group/t/aeraulics-install-error/547/2 "2024-06-09T14:32:00Z")
C compiler check command returns: True ---
**Author:** ![mottelet](https://yyz2.discourse-cdn.com/free1/user_avatar/scilab.discourse.group/mottelet/32/13_2.png) [@mottelet](https://scilab.discourse.group/u/mottelet)\ **Post date:** [June 9, 2024, 7:00pm UTC](https://scilab.discourse.group/t/aeraulics-install-error/547/3 "2024-06-09T19:00:32Z")
Hello, The Open engineering site has not been updated since 2015 (9 years ago), and the Aeraulics toolbox has not been updated since that date. Try to contact the toolbox authors to see if they can help you to update it for Scilab 2024.0. I can’t help you, as I did not manage to download it from the Open engineering site. S. ---
**Author:** ![JIM](https://avatars.discourse-cdn.com/v4/letter/j/ac91a4/32.png) [@JIM](https://scilab.discourse.group/u/JIM)\ **Post date:** [June 9, 2024, 7:08pm UTC](https://scilab.discourse.group/t/aeraulics-install-error/547/4 "2024-06-09T19:08:21Z")
I’ll try older version of scilab next week. ---
**Author:** ![mottelet](https://yyz2.discourse-cdn.com/free1/user_avatar/scilab.discourse.group/mottelet/32/13_2.png) [@mottelet](https://scilab.discourse.group/u/mottelet)\ **Post date:** [June 10, 2024, 6:42am UTC](https://scilab.discourse.group/t/aeraulics-install-error/547/5 "2024-06-10T06:42:39Z")
The source of the toolbox seems completely unavailable except for people having downloaded it before the site was completely off. It is not even possible to register. So, unless the toolbox is made available to the public, there won’t be any support from the Scilab team. As you seem to have the toolbox, can you share it here if its license allows it (you can drag and drop the zip file in a new post). However, the provided blocks (see [http://www.openeering.com/sites/default/files/Aeraulic\_Toolbox\_Xcos.pdf](http://www.openeering.com/sites/default/files/Aeraulic_Toolbox_Xcos.pdf)) seem to be quite easy to reproduce as the Modelica source of each block is given in the referenced document. S. ---
**Author:** ![JIM](https://avatars.discourse-cdn.com/v4/letter/j/ac91a4/32.png) [@JIM](https://scilab.discourse.group/u/JIM)\ **Post date:** [June 10, 2024, 8:52am UTC](https://scilab.discourse.group/t/aeraulics-install-error/547/6 "2024-06-10T08:52:59Z")
Hello, I was able to register and download the package last weekend. The license allows redistribution so here’s a link: [https://drive.google.com/file/d/1ukVmbMBxjB1ZyYjcTrAiyt61khGTLgYv/view?usp=drive\_link](https://drive.google.com/file/d/1ukVmbMBxjB1ZyYjcTrAiyt61khGTLgYv/view?usp=drive_link) I have to take a look into how to make my own blocks. ---
**Author:** ![mottelet](https://yyz2.discourse-cdn.com/free1/user_avatar/scilab.discourse.group/mottelet/32/13_2.png) [@mottelet](https://scilab.discourse.group/u/mottelet)\ **Post date:** [June 10, 2024, 3:45pm UTC](https://scilab.discourse.group/t/aeraulics-install-error/547/7 "2024-06-10T15:45:37Z")
Line 42 in loader.sce: ```auto blockname = blocknames(i); ``` should be replaced by ```auto blockname = blocknames{i}; ``` There is no error anymore, but the palette does not seem to be added. S.