I'm trying to launch an older app in macOS Sierra. It worked fine in El Capitan, however since the update to Sierra it crashes immediately on launch with the error…
This UPX compressed binary contains an invalid Mach-O header and cannot be loaded.
Using Homebrew in El Capitan, I installed UPX and used it to try uncompressing the binary, however this tells me that the binary is not compressed in the first place.
$ upx -d /tmp/Run.app/Contents/MacOS/Run Ultimate Packer for eXecutables Copyright (C) 1996 - 2013 UPX 3.91 Markus Oberhumer, Laszlo Molnar & John Reiser Sep 30th 2013 File size Ratio Format Name -------------------- ------ ----------- ----------- upx: /tmp/Run.app/Contents/MacOS/Run: NotPackedException: not packed by UPX Unpacked 0 files.
This is the crash log from opening the app in Sierra.
Crashed Thread: 0 Dispatch queue: com.apple.main-thread Exception Type: EXC_CRASH (SIGKILL) Exception Codes: 0x0000000000000000, 0x0000000000000000 Exception Note: EXC_CORPSE_NOTIFY Termination Reason: EXEC, [0xc] This UPX compressed binary contains an invalid Mach-O header and cannot be loaded. Thread 0 Crashed:: Dispatch queue: com.apple.main-thread 0 libsystem_kernel.dylib 0x00007fffcffeabb2 __posix_spawn + 10 1 libsystem_kernel.dylib 0x00007fffcffe5ef2 posix_spawn + 386 2 xpcproxy 0x000000010dbb2d75 0x10dbb0000 + 11637 3 xpcproxy 0x000000010dbb3992 0x10dbb0000 + 14738 4 libdyld.dylib 0x00007fffcfebc255 start + 1
How can I get this app to open in Sierra?