Alright! Thats a sweet improvement.

Okay no worries we'd already moved to the method you described!

Does this change back propagate to earlier versions like 2023?

Firstly this is a bug, but I wasn't able to post directly into the bug forum.
Secondly this isn't really an SDK issue, but figured this is a fine community to raise the issue in.

So the problem I've found is that the registry key for Cinema 4D 2024.5.1 on Windows end in a build hash instead of the major version. This means the registry path is now:
HKEY_LOCAL_MACHINE\SOFTWARE\Maxon\Maxon Cinema 4D 9cac615ccf68a2d4af092ff2cb09640d05c8aa02d3ac06cd4ef5fb474b95fd3e
where on all previous versions it was:
HKEY_LOCAL_MACHINE\SOFTWARE\Maxon\Maxon Cinema 4D 2024

This surfaced as it was causing issues in our software since we utilize these registry keys to find installations of C4D. We've now implemented a more robust system to identify installations from registry keys, so we don't actually need this fixed. Just figured it was worth surfacing the error.

Here is a screenshot of the registry of a Cinema 4D 2024.5.1 installation:

Exactly the problem Ferdinand, thanks for the speedy fixes! Successfully building on 2024.0.2 and 2023.0.1 sdks.
-Avery

Thanks for looking into this Ferdinand and have a great evening!

Hey Ferdinand! Great to be here, and thanks for the super fast response.

Currently I was testing only on a macOS machine. Just to double check I didn't bork anything I just did the following steps to try again all on macOS:

1. Download SDK 2024.0.2 C++ sdk from the sdk downloads page.
2. Extracted it to my downloads folder.
3. Ran ./generate_solution_osx.command
4. Opened ./solution_osx.command
5. Changed build system to legacy, schema to AllTargets, and tried to build
   Ran into the same issue here:

Hello!

I'm running into the following build error when building my plugin using the 2024.0.2 sdk. When I build with the 2024.5 sdk my plugin builds fine, but I'd like to support as many versions of C4D as possibe.

error: can't exec '../../../frameworks/settings/ccache-clang.sh' (No such file or directory)
Command ../../../frameworks/settings/ccache-clang.sh failed with exit code 71

I've confirmed the file is at the location being searched for.

Configuration:
Error occurred while building core.framework.
Building on macOS Monterey 12.7.6 with Xcode 13.4.1 utilizing legacy build system.

Additionally I attempted to build with the 2023.0 SDK and had the same error.