phacility/phabricator · error · Exception

Project colors must have unique keys, but two icons share th

Error message

Project colors must have unique keys, but two icons share the same key ("%s").

What it means

Error "Project colors must have unique keys, but two icons share the same key ("%s")." thrown in phacility/phabricator.

Source

Thrown at src/applications/project/icon/PhabricatorProjectIconSet.php:475

        ));

      $key = $value['key'];
      if (!isset($available_keys[$key])) {
        throw new Exception(
          pht(
            'Color key "%s" is not a valid color key. The supported color '.
            'keys are: %s.',
            $key,
            implode(', ', $available_keys)));
      }
    }

    $default = null;
    $keys = array();
    foreach ($config as $idx => $value) {
      $key = $value['key'];
      if (isset($keys[$key])) {
        throw new Exception(
          pht(
            'Project colors must have unique keys, but two icons share the '.
            'same key ("%s").',
            $key));
      } else {
        $keys[$key] = true;
      }

      if (idx($value, 'default')) {
        if ($default === null) {
          $default = $value;
        } else {
          $original_key = $default['key'];
          throw new Exception(
            pht(
              'Two different colors ("%s", "%s") are marked as the default '.
              'color. Only one color may be marked as the default.',
              $key,

View on GitHub (pinned to 5720a38cfe)

When it happens

Trigger: Thrown at src/applications/project/icon/PhabricatorProjectIconSet.php:475 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/3acf05da08885e09. Report an issue: GitHub.