octobercms/october · error · SystemException

Missing content UUID. Set the attribute 'blueprint_uuid' on

Error message

Missing content UUID. Set the attribute 'blueprint_uuid' on the model first.

What it means

Error "Missing content UUID. Set the attribute 'blueprint_uuid' on the model first." thrown in octobercms/october.

Source

Thrown at modules/tailor/classes/BlueprintModel.php:99

         * Example usage:
         *
         *     $model->bindEvent('model.extendBlueprint', function (string $uuid) use (\October\Rain\Database\Model $model) {
         *         // Apply specific uuid actions
         *         $model->add_status_to_history = true;
         *     });
         *
         */
        $this->fireEvent('model.extendBlueprint', [$uuid]);
    }

    /**
     * getBlueprintUuid
     */
    public function getBlueprintUuid(): string
    {
        $uuid = $this->blueprint_uuid;
        if (!$uuid) {
            throw new SystemException("Missing content UUID. Set the attribute 'blueprint_uuid' on the model first.");
        }

        return $uuid;
    }

    /**
     * setBlueprintUuid
     */
    public function setBlueprintUuid($value)
    {
        $this->blueprint_uuid = $value;
    }

    /**
     * getBlueprintGroupAttribute
     */
    public function getBlueprintGroupAttribute(): ?string
    {

View on GitHub (pinned to b608633a7e)

When it happens

Trigger: Thrown at modules/tailor/classes/BlueprintModel.php:99 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of octobercms/october@b608633a7e (2026-08-21). Data as JSON: /api/errors/a37f6968c2fd5fb9. Report an issue: GitHub.