I am just trying to open a new revision for my current branch, but am getting:
```
[ptv]thiblahute@~/devel/pitivi/1.0-uninstalled/gst-editing-services (timeline_element_children_properties|…) $ arc diff --create
PHP Fatal error: Call to undefined method PhutilTranslator::setLocale() in /home/thiblahute/devel/arcanist/scripts/__init_script__.php on line 57
Fatal error: Call to undefined method PhutilTranslator::setLocale() in /home/thiblahute/devel/arcanist/scripts/__init_script__.php on line 57
```
Openning revisions like that worked several times but is failling right now.
I got arcanist from
```
commit 8f8fe44b05a464410ce2e2a797c96ec1f7d96c81
Author: epriestley <git@epriestley.com>
Date: Wed Feb 11 13:02:11 2015 -0800
``