Title: Install NOK
Last modified: June 27, 2026

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# Install NOK

 *  Resolved [Thierry](https://wordpress.org/support/users/typtop21/)
 * (@typtop21)
 * [1 week, 3 days ago](https://wordpress.org/support/topic/install-nok/)
 * Hello,
   I am unable to install WebCalendar 1.0.5 on O2SWITCH Cloud with WP 7 /
   PHP version: 8.4.21.Message: “The archive could not be installed. Your server
   is running PHP version 8.1.34, but the downloaded extension requires version 
   8.2. Extension installation failed.”Best regards,Thierry
    -  This topic was modified 1 week, 3 days ago by [Thierry](https://wordpress.org/support/users/typtop21/).

Viewing 1 replies (of 1 total)

 *  Thread Starter [Thierry](https://wordpress.org/support/users/typtop21/)
 * (@typtop21)
 * [1 week, 3 days ago](https://wordpress.org/support/topic/install-nok/#post-18950040)
 * Hello, thanks for THE solution!
 * The “error” occurs because WordPress compares the PHP version actually being 
   used by my site against the minimum required version; it detects version 8.1.34,
   whereas the O2SWITCH dashboard shows version 8.4.21.
   This discrepancy is common
   with O2SWITCH/cPanel hosting: the PHP version displayed in the control panel 
   can differ from the one assigned to the specific WordPress directory.To resolve
   this issue: – Log in to O2SWITCH cPanel – Open “MultiPHP Manager” (in the “Software”
   section) – Set the PHP version to 8.2 or higher (I chose 8.4)Note: By default,
   this affects all domains and subdomains, so check with O2SWITCH support if you
   need to isolate a specific one. – Save the changes– Activate the extension**And
   it works!**
 * I am now in :
   Plugin version : 1.0.5webcalendar-core : dev-main (91848a7)php-
   icalendar-core : 1.1.4PHP version : 8.4.21

Viewing 1 replies (of 1 total)

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## Tags

 * [Install](https://wordpress.org/support/topic-tag/install/)

 * 1 reply
 * 2 participants
 * Last reply from: [Thierry](https://wordpress.org/support/users/typtop21/)
 * Last activity: [1 week, 3 days ago](https://wordpress.org/support/topic/install-nok/#post-18950040)
 * Status: resolved