phacility/phabricator · error · Exception

Collided mid-air when generating builtin file "%s", but then

Error message

Collided mid-air when generating builtin file "%s", but then failed to load the object we collided with.

What it means

Error "Collided mid-air when generating builtin file "%s", but then failed to load the object we collided with." thrown in phacility/phabricator.

Source

Thrown at src/applications/files/storage/PhabricatorFile.php:1202

      $data = $builtin->loadBuiltinFileData();

      $params = array(
        'name' => $builtin->getBuiltinDisplayName(),
        'canCDN' => true,
        'builtin' => $key,
      );

      $unguarded = AphrontWriteGuard::beginScopedUnguardedWrites();
        try {
          $file = self::newFromFileData($data, $params);
        } catch (AphrontDuplicateKeyQueryException $ex) {
          $file = id(new PhabricatorFileQuery())
            ->setViewer(PhabricatorUser::getOmnipotentUser())
            ->withBuiltinKeys(array($key))
            ->executeOne();
          if (!$file) {
            throw new Exception(
              pht(
                'Collided mid-air when generating builtin file "%s", but '.
                'then failed to load the object we collided with.',
                $key));
          }
        }
      unset($unguarded);

      $file->attachObjectPHIDs(array());
      $file->attachObjects(array());

      $results[$key] = $file;
    }

    return $results;
  }

View on GitHub (pinned to 5720a38cfe)

When it happens

Trigger: Thrown at src/applications/files/storage/PhabricatorFile.php:1202 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of phacility/phabricator@5720a38cfe (2026-08-21). Data as JSON: /api/errors/b00af73b0aa8d7f0. Report an issue: GitHub.