After a git pull today, I get

[Core Exception/PhutilBootloaderException] Include of '*cleaned*/phabricator/src/aphront/console/plugin/event/DarkConsoleEventPluginAPI.php' failed!

when visiting my phab installation.

Then (maybe assuming too much :)) it seems that https://github.com/phacility/phabricator/blob/af4ebc67c66fb90bc6d73ea42ddb8d2bd7ba9dac/scripts/install/update_phabricator.sh doesn't mention "arc liberate" (which I found from $ head src/__phutil_library_map__.php) and thus have wrong paths.

OK then, trying arc liberate:

$ arc liberate
Finding source files...
Found 2,879 files.
Loading symbol cache...
Found 0 files in cache.
Analyzing 2,879 files with 8 subprocesses...
[2014-10-14 11:36:31] EXCEPTION: (CommandException) Command failed with error #137!
COMMAND
php '*cleaned*/libphutil/src/moduleutils/../../scripts/phutil_symbols.php' --ugly -- '*cleaned*/phabricator/src/applications/transactions/editor/PhabricatorApplicationTransactionEditor.php'

STDOUT
(empty)

STDERR
Killed
 at [<phutil>/src/future/exec/ExecFuture.php:397]
  #0 ExecFuture::resolvex(NULL) called at [<phutil>/src/future/exec/ExecFuture.php:419]
  #1 ExecFuture::resolveJSON() called at [<phutil>/src/moduleutils/PhutilLibraryMapBuilder.php:458]
  #2 PhutilLibraryMapBuilder::analyzeLibrary() called at [<phutil>/src/moduleutils/PhutilLibraryMapBuilder.php:77]
  #3 PhutilLibraryMapBuilder::buildMap() called at [<phutil>/src/moduleutils/PhutilLibraryMapBuilder.php:109]
  #4 PhutilLibraryMapBuilder::buildAndWriteMap() called at [<phutil>/scripts/phutil_rebuild_map.php:72]

I get different errors for each time, but always with #137. Googling leads me to timeouts but I'm thinking - I'll just stop here for a while and confirm that I'm on the right track :)

The revisions I am using:
arcanist
52947cfd92b331916adffa1ff3233546446c881b

libphutil
160eeba602bf5329ec7fee0fc0834e924557d9b3

phabricator
af4ebc67c66fb90bc6d73ea42ddb8d2bd7ba9dac

(Do you want me to create a new bug for this instead of keeping a conversation here, or how should I continue?)

Restart Apache or php-fpm. APC has cached an old map, including an old path. Use a script like this to update Phabricator and make sure APC is flushed when you restart:

https://secure.phabricator.com/diffusion/P/browse/master/scripts/install/update_phabricator.sh

In D10695#94319, @epriestley wrote:

Restart Apache or php-fpm. APC has cached an old map, including an old path. Use a script like this to update Phabricator and make sure APC is flushed when you restart:

https://secure.phabricator.com/diffusion/P/browse/master/scripts/install/update_phabricator.sh

This fixed it for me. Thanks.