# Error when using Parallel import command | MTC Extendee Custom Import Bundle Plugin

**URL:** https://forum.mautic.org/t/error-when-using-parallel-import-command-mtc-extendee-custom-import-bundle-plugin/28714
**Category:** Product Support
**Tags:** mautic-4
**Created:** [July 25, 2023, 4:34pm UTC](https://forum.mautic.org/t/error-when-using-parallel-import-command-mtc-extendee-custom-import-bundle-plugin/28714 "2023-07-25T16:34:06Z")
**Posts on this page:** 2
**Page:** 1

<div class="post-metadata">

### Author: ![carlosatfongo](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/carlosatfongo/32/10223_2.png) [@carlosatfongo](https://forum.mautic.org/u/carlosatfongo)
#### Post date: [July 25, 2023, 4:34pm UTC](https://forum.mautic.org/t/error-when-using-parallel-import-command-mtc-extendee-custom-import-bundle-plugin/28714/1 "2023-07-25T16:34:06Z")

</div>

**Your software**  
My Mautic version is: v4.4.9  
My PHP version is: 8.0.29  
My Database type and version is: 10.6.12-MariaDB-0ubuntu0.22.04.1  
Doctrine driver: pdo\_mysql  
|Doctrine database platform: Doctrine\DBAL\Platforms\MariaDb1027Platform

**Your problem**  
My problem is: We are having issues with the parallel import command from MTCExtendee’s Mautic Custom Import Bundle plugin.

```auto
sudo php /mautic/bin/console mautic:import:parallel

```

The command is being executed from the console, but seems to return the below error:

```auto
[2023-07-25 15:42:37] mautic.NOTICE: Error: Class "Symfony\Component\Process\ProcessBuilder" not found (uncaught exception) at /srv/mautic/docroot/plugins/MauticCustomImportBundle/Import/ParallelImport.php line 42 while running console command `mautic:import:parallel` [] {"hostname":"not_the_real_hostname","pid":47673}

```

 ![error](https://us1.discourse-cdn.com/flex020/uploads/mautic/original/2X/7/7c5d0246c3a0d14f8d35b44434461a97d1441a55.png)

Steps I have tried to fix the problem:  
Clearing cache and restarting server

---

<div class="post-metadata">

### Author: ![silavapi](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/silavapi/32/7424_2.png) [@silavapi](https://forum.mautic.org/u/silavapi)
#### Post date: [July 25, 2023, 4:56pm UTC](https://forum.mautic.org/t/error-when-using-parallel-import-command-mtc-extendee-custom-import-bundle-plugin/28714/2 "2023-07-25T16:56:03Z")

</div>

@kuzmany one for you!