phacility/phabricator · error · Exception

Project depth is too great.

Error message

Project depth is too great.

What it means

Error "Project depth is too great." thrown in phacility/phabricator.

Source

Thrown at src/applications/project/storage/PhabricatorProject.php:434

    if ($path_key === null || $path_key === '') {
      $hash = PhabricatorHash::digestForIndex($this->getPHID());
      $hash = substr($hash, 0, 4);
      $this->setProjectPathKey($hash);
    }

    $path = array();
    $depth = 0;
    if ($this->parentProjectPHID) {
      $parent = $this->getParentProject();
      $path[] = $parent->getProjectPath();
      $depth = $parent->getProjectDepth() + 1;
    }
    $path[] = $this->getProjectPathKey();
    $path = implode('', $path);

    $limit = self::getProjectDepthLimit();
    if ($depth >= $limit) {
      throw new Exception(pht('Project depth is too great.'));
    }

    $this->setProjectPath($path);
    $this->setProjectDepth($depth);

    $this->openTransaction();
      $result = parent::save();
      $this->updateDatasourceTokens();
    $this->saveTransaction();

    return $result;
  }

  public static function getProjectDepthLimit() {
    // This is limited by how many path hashes we can fit in the path
    // column.
    return 16;
  }

View on GitHub (pinned to 5720a38cfe)

When it happens

Trigger: Thrown at src/applications/project/storage/PhabricatorProject.php:434 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/bea53bd21e9e7fdf. Report an issue: GitHub.