revsecurity.dylib is not 64-bit on macOS

Brian Milby brian at
Mon Dec 3 16:56:01 EST 2018

Just need to de-fat the file.  Need to change to the location within the
app package in the terminal and use the following command:

lipo revsecurity.dylib -remove i386 -output revsecurity.dylib

May need to use "sudo".  Also, will need to resign the app after doing so.

On Mon, Dec 3, 2018 at 3:43 PM kee nethery via use-livecode <
use-livecode at> wrote:

> Trying to upload to the Mac App Store and I get this error.
> “Unsupported Architectures. Your executable contained the following
> disallowed architectures: ‘[i386 (in com.elloco.ellocotools.pkg/Payload/El
> Loco]’. New apps submitted to
> the Mac App Store must support 64-bit starting January 2018, and Mac app
> updates and existing apps must support 64-bit starting June 2018.”
> Is there a 64-bit revsecurity.dylib I can download and swap in to replace
> the 32-bit version installed by LiveCode Standalone App Builder?
> Alternatively, what functionality must I remove from my app so that
> revsecurity.dylib does not get installed (or can be safely removed
> manually)?
> Kee Nethery
> _______________________________________________
> use-livecode mailing list
> use-livecode at
> Please visit this url to subscribe, unsubscribe and manage your
> subscription preferences:

More information about the Use-livecode mailing list