Mex function doesn't work after upgraded to Catalina MacOS...

I was running spm12 which is a fMRI analysis. But matlab asked me to move all mexmaci64 files into trash. After I did that, none of the codes worked anymore. I have Matlab 2019b.

[Maria Barnes]

I am having this same issue despite upgrading to 2020a.

Answer 1

[Pablo Saucedo Alvarado]

https://en.wikibooks.org/wiki/SPM/Installation_on_64bit_Mac_OS_(Intel)#macOS_Catalina

macOS Catalina[edit]

If you have issues with MEX files on macOS Catalina (""*.mexmaci64" cannot be opened because the developer cannot be verified. macOS cannot verify that this app is free from malware" or "Code signature not valid for use in process using Library Validation: library load disallowed by system policy"), open a Terminal, cd to the SPM directory and type:

find . -name "*.mexmaci64" -exec xattr -d com.apple.quarantine {} \;