[chuck-users] Chugin code signing issue on macOS

David Braun braun at ccrma.Stanford.EDU
Fri Jun 4 16:12:03 EDT 2021

I've had success with a Chugin on Windows but have an issue on macOS.

I build the Chugin in terminal:
cmake -Bbuild
cd build

Then I rename the libWarpBuf.dylib to a WarpBuf.chug and place it in

This is the console log in miniAudicle when trying to use the chugin.

[chuck]:(3:SEVERE):  |  |  | error from chuck_dl:
'dlopen(/usr/local/lib/chuck/WarpBuf.chug, 2): no suitable image found.
Did find:
/usr/local/lib/chuck/WarpBuf.chug: code signature in
(/usr/local/lib/chuck/WarpBuf.chug) not valid for use in process using
Library Validation: mapped file has no cdhash, completely unsigned? Code
has to be at least ad-hoc signed.'

How can I fix this?

I also tried
cmake -Bbuild -G Xcode
and then compiling using the xcode project, with various experiments with
provisioning profiles / code signing, but it didn't work.

Thank you!
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