Not a valid JSON response

  • Resolved mrj0b

    (@mrj0b)


    1 year, 6 months ago

    after the update i started getting this error when i try to create or update a post “Not a valid JSON response”

    after disabling the plugin everything went to normal as usual

Viewing 15 replies - 1 through 15 (of 21 total)
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  • Plugin Author Hasan CALISIR

    (@psauxit)

    1 year, 6 months ago

    Hello @mrj0b

    I released version v2.0.6 that address also the issue you shared. I kindly request your feedback on the new release.

    Best ~Hasan

    Thread Starter mrj0b

    (@mrj0b)

    1 year, 6 months ago

    still facing the problem with the latest version

    Thread Starter mrj0b

    (@mrj0b)

    1 year, 6 months ago

    maybe the problem is because i disabled cron job function on my wordpress installation and replaced it with a crontab command with wp-cli that run every 5 minutes, i’ll check it later and tell you the results

    Plugin Author Hasan CALISIR

    (@psauxit)

    1 year, 6 months ago

    @mrj0b

    maybe the problem is because i disabled cron job function on my wordpress installation and replaced it with a crontab command with wp-cli that run every 5 minutes, i’ll check it later and tell you the results

    I don’t think that’s the case.

    Simply toggle the Auto Purge option (switch it On/Off) in the NPP settings and try again. If the error reoccurs when only the Auto Purge feature is enabled, then the issue is caused by NPP. In that case, please share the metrics from the Status tab, as well as details on how and where you encountered the ‘Not a valid JSON response‘ error.

    Best~Hasan

    Thread Starter mrj0b

    (@mrj0b)

    1 year, 6 months ago

    yes disabling the auto purge option fixed the problem but when its enabled i get the error when i try to create a post or update a post creating and updating page also gives me the error

    Thread Starter mrj0b

    (@mrj0b)

    1 year, 6 months ago

    trying to purge the cache manually got this error 


    حدث خطأ من نوع E_ERROR بسبب السطر 383 في الملف /home/***/*******.com/public/wp-content/plugins/fastcgi-cache-purge-and-preload-nginx/includes/purge.php. رسالة الخطأ: Uncaught Error: Undefined constant "SIGTERM" in /home/***/*******.com/public/wp-content/plugins/fastcgi-cache-purge-and-preload-nginx/includes/purge.php:383
    Stack trace:
    #0 /home/***/*******.com/public/wp-content/plugins/fastcgi-cache-purge-and-preload-nginx/includes/admin-bar.php(143): nppp_purge()
    #1 /home/***/*******.com/public/wp-includes/class-wp-hook.php(324): nppp_handle_fastcgi_cache_actions_admin_bar()
    #2 /home/***/*******.com/public/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters()
    #3 /home/***/*******.com/public/wp-includes/plugin.php(517): WP_Hook->do_action()
    #4 /home/***/*******.com/public/wp-admin/admin.php(175): do_action()
    #5 {main}
      thrown
    Plugin Author Hasan CALISIR

    (@psauxit)

    1 year, 6 months ago

    Hello @mrj0b

    Thank you for your feedback!

    You need Process Control extension in PHP, known as pcntl – NPP depends it for proper functionality.

    Please check extension enabled:

    php -m | grep pcntl

    If extension not enabled please install proper version accordingly to your in use php version and enable the extension.

    For example on Debian for PHP 8.2

    apt install php8.2-pcntl
    systemctl restart php8.2-fpm.service

    Best~Hasan

    Thread Starter mrj0b

    (@mrj0b)

    1 year, 6 months ago

    pcntl is already installed and enabled i re-checked and its enabled

    Plugin Author Hasan CALISIR

    (@psauxit)

    1 year, 6 months ago

    Also could you check, posix extension?

    php -m | grep posix

    That is weird, I will try to re-produce the issue, could you tell me where do you try to Manual Purge? On Advanced tab? Or issue occurs on Auto Purge action?

    Thread Starter mrj0b

    (@mrj0b)

    1 year, 6 months ago

    posix is installed an enabled

    the error happened once when i tried to manually purge

    but the “Not a valid JSON response” error happen when i try to update or create a post/page

    the error disappear when i disable auto-purge option

    i attached a screenshot of status page

    View post on imgur.com
    • This reply was modified 1 year, 6 months ago by mrj0b.
    Plugin Author Hasan CALISIR

    (@psauxit)

    1 year, 6 months ago

    Thank you !

    I am unable to reproduce the issue on my side, but I strongly suspect that the pcntl extension is not enabled for the PHP version currently in use. If you have multiple PHP versions installed, it’s possible that your system is still pointing to an older version, which could be causing the confusion.

    To check which PHP version is currently active, run the following command:

    which php

    For example, the output might be:

    /usr/bin/php

    Next, you can verify where this php command points to by running:

    ls -al /usr/bin/php

    The output might look something like this:

    /usr/bin/php -> ../lib64/php8.1/bin/php

    This indicates that the php command is currently pointing to a PHP 8.1 installation. However, this doesn’t necessarily mean that PHP 8.1 is the version in use by your web server or CLI.

    Check in use PHP version via and compare:

    ps aux | grep php-fpm

    or oldschool way

    phpinfo.php
    <?php phpinfo(); ?>

    If this is not the case, please let me know to deep dive.

    Best~Hasan

    Thread Starter mrj0b

    (@mrj0b)

    1 year, 6 months ago

    i have only one version off php installed 8.3 and pcntl is installed and activated, i used the network tab to see what’s the respond i get when clicking save and i got this i hope it will help you investigate the issue

    <p>SUCCESS ADMIN: Auto purge cache attempted but page not found in cache,
    Auto preload started for page https: //*******.com/amp_validated_url/4593653da803044b81be3d3b06e87793/</p>{"results":[],"review_link":"https:\/\/*******.com\/wp-admin\/post.php?post=8472&action=edit","support_link":"https:\/\/ww.wp.xz.cn\/support\/plugin\/amp\/#new-topic-0"}
    Plugin Author Hasan CALISIR

    (@psauxit)

    1 year, 6 months ago

    Hello @mrj0b 

    * Undefined constant "SIGTERM" | * Not a valid JSON response

    I’ve released version v2.0.7. Please let me know if it resolves the issues you’re facing. If the issue persists, there may be a conflict with the AMP plugin you’re using.

    Best~Hasan

    Plugin Author Hasan CALISIR

    (@psauxit)

    1 year, 6 months ago

    Hello @mrj0b,

    I’ve released version v2.0.8, Please let me know if it resolves the issues you’re facing.

    Best~Hasan

    Thread Starter mrj0b

    (@mrj0b)

    1 year, 6 months ago

    still facing the same problem i tested it on a test server still the same problem i think it has something to do with my configuration i gave nginx and fpm-php same user account so i didn’t use your script to grant permission , currently i’m using nginx cache to purge the cache and this plugin to preload the cache , my server os is ubuntu 24.04

Viewing 15 replies - 1 through 15 (of 21 total)
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