topic Re: Add-on doesn't work on windows in Archicad C++ API

Add-on doesn't work on windows

Anonymous — Tue, 01 Aug 2023 13:59:02 GMT

Hi all,

I have a very strange error with ArchiCAD 17 on windows only. In the "Extension Manager", when my add-on is loaded, the following message is displayed:

“This file is an old Add-On, it cannot be used on this ArchiCAD version”

I don't really understand because i compile with visual studio 2010 and the API 17 Development Kit 17.3002.

If somebody has encountered this error, can tell me how to proceed to correct.

Thanks

Re: Add-on doesn't work on windows

Ralph Wessel — Tue, 03 Jun 2014 18:03:00 GMT

atila-diffusion wrote:
I have a very strange error with ArchiCAD 17 on windows only. In the "Extension Manager", when my add-on is loaded, the following message is displayed:
“This file is an old Add-On, it cannot be used on this ArchiCAD version”

That error message doesn't mean anything more than, "something went wrong when trying to load the add-on".

First check that the correct resources are loaded, e.g. the MDID. Then check that it links against the correct libraries.

Re: Add-on doesn't work on windows

Anonymous — Thu, 19 Jun 2014 06:53:22 GMT

Hi Ralph,

What is 'e.g. The MDID' ??

So i tried my add-on on two others computers, it works...
But it still doesn't work when i tried on any computer.

Thank.

Re: Add-on doesn't work on windows

Karl Ottenstein — Thu, 19 Jun 2014 15:37:51 GMT

Each add-on contains a number of *.grc resource files ("Graphisoft Resource Compiler"). One of these files defines the MDID resource to identify the add-on. This consists of a Developer ID and a Local ID (add-on ID). The Developer ID is assigned to you by Graphisoft. Without a proper MDID, the add-on should still load ... but ONLY if you launch AC in Demo Mode (no keyplug installed).

Re: Add-on doesn't work on windows

Ralph Wessel — Sat, 21 Jun 2014 07:56:32 GMT

atila-diffusion wrote:
What is 'e.g. The MDID' ??
So i tried my add-on on two others computers, it works...
But it still doesn't work when i tried on any computer.

Karl has covered the MDID question. If it works on some computers but not on others, then we have to look elsewhere. The most likely culprit is a VS runtime mismatch. There are multiple versions of the VS 2010 runtime. If the build version doesn't match the runtime version, it can prevent the DLL from loading. Take a look here.