# Mautic Fresh Installation Failed after Step 1 (IIS Server)

**URL:** https://forum.mautic.org/t/mautic-fresh-installation-failed-after-step-1-iis-server/21074
**Category:** Mautic 4 Install/Upgrade Support
**Created:** [September 30, 2021, 2:50am UTC](https://forum.mautic.org/t/mautic-fresh-installation-failed-after-step-1-iis-server/21074 "2021-09-30T02:50:14Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![kennexionz](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/kennexionz/32/618_2.png) [@kennexionz](https://forum.mautic.org/u/kennexionz)
#### Post date: [September 30, 2021, 2:50am UTC](https://forum.mautic.org/t/mautic-fresh-installation-failed-after-step-1-iis-server/21074/1 "2021-09-30T02:50:14Z")

</div>

**Your software**  
_Webserver_ : Windows IIS server  
_My PHP version is_ : 7.4.12  
_My MySQL/MariaDB version is_ (delete as applicable): MariaDB version 10.3.7

**Updating/Installing Errors**  
_I am_ (delete as applicable): Performing a fresh(first time installation) via the zip file.  
_These errors are showing in the installer_ : PHP Fatal error: require(): Failed opening required ‘C:\inetpub\laravel\mautic4\var\cache\prod\ContainerX2kaOS4\getSwiftmailer\_EmailSender\_ListenerService.php’ (include\_path=’.;C:\php\pear’) in C:\inetpub\laravel\mautic4\var\cache\prod\ContainerX2kaOS4\appAppKernelProdContainer.php on line 2225

_These errors are showing in the Mautic log_ :  
PHP Fatal error: require(): Failed opening required ‘C:\inetpub\laravel\mautic4\var\cache\prod\ContainerX2kaOS4\getSwiftmailer\_EmailSender\_ListenerService.php’ (include\_path=’.;C:\php\pear’) in C:\inetpub\laravel\mautic4\var\cache\prod\ContainerX2kaOS4\appAppKernelProdContainer.php on line 2225

**Your problem**  
_My problem is_ : According to the error it seems to be having issue opening/ finding this specific file. The blank DB was created after the first step and the error above prevented me from continuing.

_Steps I have tried to fix the problem_ :  
Full permission has been granted to the web folder for IUSR so there is no read write permission issues as I do see the var/cache/prod folder populating and clearing our after the mentioned error is shown.

my PHP max\_execution\_time is 300

my PHP memory\_limit is 512M

Maria DB issues no problem as the base/blank database is created successfully.

Is anyone facing similar issues? Please advise

Thank you in advance