Arcanist error: Passing null to parameter #2 ($subject) of type string is deprecated

Project Infrastructure Code Review
1

Hi,

I’m trying to download this patch for review and I get the following error:

$ arc patch D144216
 Exception 
preg_match(): Passing null to parameter #2 ($subject) of type string is deprecated
(Run with `--trace` for a full exception trace.)

I’m using the latest arc binary from the arcanist github repo, running on Ubuntu 20.04. Has anyone come across this issue? How to solve it?

EDIT: found the answer here. Admins feel free to delete the post :slight_smile: