topic Archicad 28.3.2 (6200) INT on Apple Silicon cannot validate sample add-on built with API Development in Archicad C++ API

Archicad 28.3.2 (6200) INT on Apple Silicon cannot validate sample add-on built with API Development

SW-CH — Tue, 17 Mar 2026 23:22:25 GMT

Hi, I am using Archicad 28.3.2 (6200) INT FULL on Apple Silicon. I built the sample add-on from the archicad-addon-cmake template using API Development Kit 28 (4001). The build now succeeds on macOS after fixing the DevKit path and removing macOS quarantine from ResConv, but Add-On Manager still says: ‘This add-on cannot be validated. Please contact the distributor.'

What I checked:

DevKit path points to the Support folder correctly
build completes successfully
binary is universal (x86_64 and arm64)
bundle Info.plist shows CFBundleVersion = 0.0.0.2804001
Archicad version is 28.3.2 build 6200 INT
no 6200 DevKit appears on the public download page

Could you confirm whether add-ons built with DevKit 28 (4001) are expected to validate in Archicad build 6200, or whether a different DevKit is required? Also, is there any known MDID or validation issue with the sample template on this Archicad build?

Re: Archicad 28.3.2 (6200) INT on Apple Silicon cannot validate sample add-on built with API Develop

Tamas Polyak — Mon, 23 Mar 2026 07:19:00 GMT

Hi,

I've asked a developer about this question.

Regards,

Tamás

Re: Archicad 28.3.2 (6200) INT on Apple Silicon cannot validate sample add-on built with API Develop

Claudiu Serban — Mon, 23 Mar 2026 13:24:24 GMT

I have no problem building with that DevKit (thats latest) on AC 28.3.3. Stupid question: Did you edit the RFIX/AddOnFix.grc with your dev id and did you register an addon on the dev platform to get a local id? If either of those values is 1 then thats your most likely culprit.

LE: If you didn't, then your addon would only work in Demo mode. Start AC using "/Applications/Archicad 28.app/Contents/MacOS/Archicad" -demo in terminal, see if it loads.

Re: Archicad 28.3.2 (6200) INT on Apple Silicon cannot validate sample add-on built with API Develop

Tamas Polyak — Mon, 20 Apr 2026 08:34:57 GMT

Hi,

I've consulted with the developer and he had a couple of questions:

1. Why was necessary to move the quarantine flag from ResConv?

2. Do you use the archicad-addon-cmake tools to build the addon?

3. Did you try to build it with the 4001 devkit, and load it with Archicad?

Regards,

Tamás