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Pourquoi ne puis-je pas ajouter ou installer des plugins dans WordPress ? (5 raisons)

L’une des questions les plus fréquentes que nous posent nos lecteurs est la suivante :  » Pourquoi ne puis-je pas ajouter des extensions dans WordPress ? « .

Cette situation se produit généralement lorsque l’utilisateur/utilisatrice voit un message de mise à niveau ou que sa zone d’administration ne dispose pas du menu « Plugins ». Si vous êtes confronté à ce problème, vous êtes au bon endroit.

Dans cet article, nous allons expliquer pourquoi il n’est pas possible d’ajouter ou d’installer des extensions dans WordPress.

Why Can't I Add or Install Plugins in WordPress

Ce guide a listé 5 des principales raisons pour lesquelles vous ne pouvez pas ajouter ou installer des extensions dans WordPress. N’hésitez pas à utiliser les liens rapides ci-dessous pour aller à/au Sujet spécifique qui s’applique à votre situation :

1. Vous êtes sur WordPress.com

WordPress.com est un service d’hébergeur de blogs qui propose une version limitée du célèbre logiciel auto-hébergé WordPress. Consultez notre guide sur la différence entre WordPress.com et WordPress.org pour plus de détails.

Les utilisateurs de WordPress.com ne peuvent pas installer de plugins à moins de passer au plan Creator ou à un plan supérieur, qui commence à environ 25 $ par mois. Si vous êtes sur un plan gratuit, débutant ou explorateur, vous ne pouvez pas installer de plugins tiers.

Trying to install a plugin in WordPress.com

Si vous ne souhaitez pas payer ce montant, vous pouvez déplacer votre blog de WordPress.com à WordPress.org.

Si vous avez besoin d’aide, vous pouvez utiliser notre service gratuit de configuration de blog WordPress. Indiquez simplement que vous souhaitez que nous transférions votre site, et nous le ferons gratuitement.

Conseil de pro : Vous voulez créer un site web sur WordPress.org sans problème ? Nos services WPBeginner Pro peuvent vous aider à démarrer votre présence en ligne et à construire un beau site sans effort.

2. Il existe des restrictions concernant le rôle des utilisateurs/utilisatrices.

WordPress dispose d’un système intégré de gestion des rôles des utilisateurs qui attribue différents niveaux d’accès aux utilisateurs de votre site web.

Lesadministrateurs constituent le rôle d’utilisateur le plus élevé, avec un accès complet à toutes les fonctionnalités de votre site WordPress, y compris l’ajout, l’installation et l’activation de plugins.

En revanche, les éditeurs, les auteurs, les contributeurs et les abonnés ne peuvent pas installer de plugins.

Administrator vs Editor dashboard in WordPress

Si vous travaillez sur un site web mais que vous ne voyez pas le menu « Plugins », il est possible que vous n’ayez pas d’accès administrateur.

Dans ce cas, si vous faites confiance à la personne qui gère le site web (par exemple, un développeur ou un webmaster), vous pouvez lui demander poliment de vous accorder les droits d’administrateur pour installer les plugins dont vous avez besoin.

3. Vous êtes confronté à un problème de limite de mémoire

Le deuxième scénario le plus courant est que vous pouvez voir et accéder à la page des extensions, mais que vous ne pouvez pas installer d’extensions. Lorsque vous essayez d’installer des extensions, un message d’erreur s’affiche.

Cette erreur est généralement causée par la limite de mémoire de PHP. WordPress utilise le langage de script PHP et chaque script PHP utilise une certaine quantité de mémoire.

Il existe des réglages dans votre hébergeur WordPress et dans le cœur de WordPress qui définissent la quantité de mémoire qu’un script PHP peut utiliser.

Lorsqu’un processus atteint cette limite, il se termine ou affiche une erreur comme celle-ci sur votre site WordPress:

Erreur fatale : La taille de mémoire autorisée de 67108864 octets est épuisée.

La solution rapide à ce problème est d’augmenter la limite de mémoire de PHP. Vous pouvez le faire en ajoutant cette ligne à votre fichier wp-config.php:

define('WP_MEMORY_LIMIT', '256M');

Pour des instructions plus détaillées, consultez notre guide sur la façon de corriger l’erreur WordPress memory exhausted.

Notez que si l’augmentation de la limite de mémoire de PHP peut parfois résoudre le problème et vous permettre d’installer des plugins, il est important de comprendre que ce n’est pas toujours la solution idéale.

Un code malveillant pourrait exploiter une limite de mémoire élevée pour consommer plus de ressources que prévu, ce qui pourrait avoir un impact sur la sécurité de votre site WordPress.

Avant de modifier vous-même la limite de mémoire, il est fortement recommandé de consulter votre hébergeur WordPress. Il pourra analyser les besoins spécifiques de votre site web et vous conseiller sur une augmentation sûre et appropriée de la limite de mémoire, si nécessaire.

Pour plus d’informations, vous pouvez lire notre article sur la manière de demander correctement de l’aide à WordPress.

4. Vous êtes sur un réseau multisite

Une autre raison possible pour laquelle vous ne pouvez pas voir le menu Plugins dans WordPress est que votre site fait partie d’un réseau WordPress multisite.

Un réseau WordPress multisite vous permet de gérer plusieurs sites web à partir d’une seule installation de WordPress. Cela peut s’avérer utile lorsque vous devez gérer un réseau de sites web similaires.

Cependant, une différence essentielle entre un réseau multisite et une installation WordPress classique est que l’administrateur du réseau a plus de contrôle sur les sites individuels.

Dans certains cas, l’administrateur du réseau peut désactiver le menu Plugins pour des sites individuels au sein du réseau afin de maintenir la cohérence ou d’assurer la stabilité de tous les sites.

Installing plugins on multisite network

Pour résoudre ce problème, vous pouvez demander à votre administrateur réseau d’installer des plugins pour vous.

Pour en savoir plus sur ce Sujet, consultez notre guide sur les raisons pour lesquelles vous ne voyez pas toutes les extensions sur les installations multisites de WordPress.

5. Vous avez téléversé le mauvais fichier d’extension.

Imaginons que vous souhaitiez téléverser le fichier d’une extension tierce, mais que WordPress affiche un message d’erreur comme ci-dessous :

Example of plugin upload error

Dans ce cas, vous pouvez vérifier si vous téléversez le bon fichier. Les fichiers d’extension sont généralement livrés dans un paquet .zip, ce qui signifie qu’ils utilisent le format .zip.

Vous pouvez également vérifier si les fichiers de contenu zip que vous avez téléchargés sont compatibles. Toutes les extensions tierces ne proviennent pas de sources fiables, et c’est peut-être la raison pour laquelle elles ne téléversent pas correctement.

En savoir plus sur l’installation des extensions, consultez nos guides ci-dessous :

En outre, pour minimiser les risques de sécurité, nous recommandons de n’installer que des plugins provenant de sources réputées, comme le répertoire de plugins de WordPress.org. Le répertoire WordPress.org est soumis à un processus d’évaluation et tend à proposer des plugins provenant de développeurs de confiance.

Voici quelques conseils supplémentaires pour choisir des plugins sécurisés :

  • Recherchez des plugins activement développés et bien notés par les utilisateurs.
  • Vérifiez la date de la dernière mise à jour pour vous assurer que le plugin est compatible avec votre version de WordPress.
  • Lisez la description du plugin et les commentaires pour comprendre ses caractéristiques et les éventuels problèmes de compatibilité.

Nous espérons que cet article vous a aidé à comprendre pourquoi vous ne pouvez pas ajouter ou installer des extensions sur WordPress. Vous pouvez également consulter notre liste des extensions WordPress incontournables et notre guide sur les erreurs WordPress courantes et comment les corriger.

Si vous avez aimé cet article, veuillez alors vous abonner à notre chaîne YouTube pour obtenir des tutoriels vidéo sur WordPress. Vous pouvez également nous trouver sur Twitter et Facebook.

Divulgation : Notre contenu est soutenu par les lecteurs. Cela signifie que si vous cliquez sur certains de nos liens, nous pouvons gagner une commission. Consultez comment WPBeginner est financé, pourquoi cela compte et comment vous pouvez nous soutenir. Voici notre processus éditorial.

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Editorial Staff at WPBeginner is a team of WordPress experts led by Syed Balkhi with over 16 years of experience in WordPress, Web Hosting, eCommerce, SEO, and Marketing. Started in 2009, WPBeginner is now the largest free WordPress resource site in the industry and is often referred to as the Wikipedia for WordPress.

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Reader Interactions

109 commentairesLaisser une réponse

  1. Syed Balkhi

    Hey WPBeginner readers,
    Did you know you can win exciting prizes by commenting on WPBeginner?
    Every month, our top blog commenters will win HUGE rewards, including premium WordPress plugin licenses and cash prizes.
    You can get more details about the contest from here.
    Start sharing your thoughts below to stand a chance to win!

  2. Petya Ivanova

    Thank you so much!!

    • WPBeginner Support

      You’re welcome :)

      Administrateur

  3. hossein

    Hello
    I can see the plugin menu and the plugin I have installed
    But the add new plugin button is disabled
    can you help me?

    • WPBeginner Support

      There is a good chance your site is a part of a multisite network. If it is not then we would recommend checking that you do not have any plugins that would prevent adding new plugins.

      Administrateur

  4. samaneh

    I can see plugin widget in my dashboard but when I clink on add plugin, there are no plugins. I just see an error:
    « An unexpected error occurred. Something may be wrong with WordPress.org or this server’s configuration. If you continue to have problems, please try the support forums. »
    If I search a plugin name in search bar, the page refreshes but finally this massage appears again.
    what did happened?

    • WPBeginner Support

      For that error, we would recommend checking with your hosting provider to see if they have the specific error logged or if they may have a setting in their system that may have blocked the connection to WordPress.org.

      Administrateur

  5. DaninMCI

    How ridiculous. I have several websites and I was going to create a new WordPress-based site that needed to use a comparison chart but I’m not willing to pay $300 a year for plugins. I’ll go elsewhere I guess.

    • WPBeginner Support

      As we say in that section, if you do not want to pay $300 per year, we would recommend using WordPress.org which is a WordPress site on another hosting provider :)

      Administrateur

  6. Richard Ross

    I have inserted the plugin name but it still prompts me the same error.

    Error: The plugin has no name. Add a Plugin Name: line to your main plugin file and upload the plugin again. For more information, please review our documentation on Plugin Headers.

    • WPBeginner Support

      If the plugin is one you’re downloading from an external site you would want to reach out to the plugin’s support with that error message. If it is a custom plugin then you would want to ensure your plugin name is set as a comment in the header.

      Administrateur

  7. Pascal Idhiarhi

    Hi, I tried to add new plugin, and theme. But I am currently getting 403 Forbidden error. What can I do?

  8. Deborah

    I have a multisite and I installed several plugins but one isn’t showing. I can see it when I go to plugins and I have activated it but it is not showing up in my dashboard so I cant use it. Help. Why isn’t a particular installed and activated plugin showing up in m dashboard but other plugins are?

    • WPBeginner Support

      Not all plugins work with multisite installations, we would recommend checking with the support for that plugin and they would be able to help with any issues like this.

      Administrateur

  9. Akshay

    Hi,
    Thank you for sharing knowledge. We have a wordpress website hosted on our company internal server. Now we would like to migrate it to our cloud platform.
    I tried to click Add new plugin to install « All-in-One WP Migration ». However whenever I click on ‘Add new’ link server is returning 503 error. Rest all links on admin page works fine.
    Any suggestions?

    • WPBeginner Support

      Glad our guide helped :)

      Administrateur

  10. Arif Ammar

    Thanks WP team. My problem is solved.
    Thanks again for you precious support.

    • WPBeginner Support

      Glad our guide was helpful :)

      Administrateur

  11. Evan Cleary

    I set up a Wordpress site in 2014 and was able to get plugins without going into a business plan. And I sent up another site a few years ago and it was also not any problem to add plugins. As far as I know, it was via Wordpress.com and not Wordpress.org – I downloaded a theme and editors that and used my own URL hosted by a hosting company. I’m quite confused now as no one seems to be saying that this policy of having to pay for a business plan is a new thing. Is it a new thing?

    • WPBeginner Support

      If your site is on a hosting provider and not the WordPress.com website then it is a WordPress.org site. Having to purchase the business plan on WordPress.com for access to plugins is not something new.

      Administrateur

  12. karan

    I had one site of mine that had the issue of no option for adding or updating plugins. For some reason define(‘DISALLOW_FILE_MODS’,true); was in my wp-config file.

    Once I deleted that line, my plugin options were restored. It took me a while to find this solution. I hope this helps people find this solution.

    • WPBeginner Support

      Thanks for sharing your recommendation :)

      Administrateur

    • Sophorn Chhum

      Thanks, man. You’re awesome :D

    • naema

      Excellent.Great it’s working.Thank you!!!

  13. Heide

    Thanks for the good article! I am bit confused, because I am super administrator and can’t install any new plugins. I can activate and deactivate plugins for sites or the whole network. But I don’t have the page for plugin installtion. Do you have any suggestions in this case? Thanks!

    • WPBeginner Support

      If you’re using a multisite like it sounds like you are, you would need to install the plugin in the network admin area rather than on the individual sites.

      Administrateur

  14. anis

    when i try to install a pluging it shows the following:
    Installation failed: Abort class-pclzip.php : Missing zlib extensions
    what should i do

    • WPBeginner Support

      For that error, you would want to first reach out to your hosting provider and they should be able to assist.

      Administrateur

  15. Amy Skea

    I can’t download I get this message. I have tried various plugins and get the same.
    Thank you

    Installation failed: Could not copy file. wp-fastest-cache/wpFastestCache.php

  16. santosh

    hey i cant upload and install pluginsin my wordpress website.
    its shows just the blank page.please help me

  17. Amarnath

    Hey, I am troubling to install wordpress.
    « The MySQL Connection could not be established. »
    It is written like this what should I do?

    • WPBeginner Support

      You would want to ensure your username and password in your wp-config file are the correct ones, you may also want to check with your hosting provider’s support if this is a new error and they should be able to assist.

      Administrateur

  18. May

    Hey.
    How Can I transfer my blog from wordpress.com to wordpress.org to get the benefits of the second one ?

  19. Zeeshan

    hi!
    i am install pulgin but faild.
    and ERROR IS

    Fatal error: Maximum execution time of 30 seconds exceeded in G:\xampp\htdocs\Ecommrace\wp-includes\Requests\Transport\cURL.php on line 462

  20. Ale Sants

    Hello! Same problem here. Cannot ADD plugins.

    More details of my site:

    WordPress 5.2.2 running Bridge theme, so Wordpress.org. no .com

    Hostgator for hosting

    I am an admin and no one else has ever done any work on the site, so I am the only admin for sure.

    Please help and thanks in advance!

  21. Rishabh Jain

    Hey!
    I want to install WP super cache plugin but when I search it in plugin dialog box, on right top corner it shows ‘Not Available’ Why is it so? Is there any problem with my blog. Please help me out…

    • WPBeginner Support

      Is your site on WordPress.com or a managed hosting provider?

      Administrateur

  22. Mazie

    Don’t know what I’m doing wrong with new wordpress.com blog (true newbie). My menu doesn’t look like those above. All I see are the following 7 options, all are listed on the left: Site Identity, Colors & Backgrounds, Fonts, Header Image, Menus, CSS and Widgets. I guess my question is, is this as it should be for the free (.com) site? Is it from this menu that I will create and complete my free blog?

    Sorry to be so ignorant about this. I think I’m missing something as I don’t imagine it’s supposed to seem so confusing.

    Thank you!

    Mazie

    • WPBeginner Support

      Sadly, our tutorials are for WordPress.org rather than WordPress.com which is what you’re using would be part of the confusion. If you go to the wp-admin area of your WordPress.com site the admin area will look similar but you will still have the WordPress.com limitations.

      Administrateur

  23. Sasha

    Deactivate Wordpress Plugin: WP Editor and you will be able to see list of your hidden plugin. WP Editor not tested/comparable with new WP version and php 7.

    • WPBeginner Support

      Thanks for sharing what worked for you :)

      Administrateur

  24. chris

    I am trying to install a plug-in on a website that a company designed for me but I don’t have the plugin option in my administrator menu (made sure I was an admin not just a editor). My admin bar is also Red with « PRODUCTION SERVER » next to my name. Are these too related? How to I add plug-ins if I don’t have the the plug-in tab?

  25. Nalin Puri

    I am using InstantWP Named automated wordpress local server.If i buy my hosting service can i shift my blog from instant vp to that hosting server of GoDaddy

  26. sajilesh kurup

    Hi,

    on wordpress website i am able to see pulgin menu, however as i hover mouse pointer over it not displaying option menu of add new

  27. anh tuan

    please help me! i’m a admin on my website but i can’t see any plugins on plugin dashboard, in my hostin, it still no problem??

    • WPBeginner Support

      Hello,

      You may not have an admin account or someone you hired to work on your website has disabled your access to plugins area. Sometimes developers do this to make sure that their customers don’t accidentally break their websites.

      Administrateur

      • kevin shiu

        How do I go about fixing this myself assuming the original developer is no longer around?

  28. Judy Adams

    I tried adding the plug in contact form 7 add-on now I get a white a screen after activating or trying to activate. I cannot go to my dashboard or anything in word press now. When trying to FTP in to deactivate plugin I am not sure what login and password to use. Can you please help me? I don’t want to lose my whole website I created because I cant get in now.

  29. Riazvic

    Hi,
    I am having an e-commerce website, unfortunately, I am having a theme which came with a premium plugin which I have purchased. their plugin section is available but widget section is not available how can I put google translate code into that theme where should use that code in the theme files?
    I hope to get an answer here.
    thanks in advance for your support.
    Kamal

  30. David

    Hello.I have the same issue of can not add new plugin in wordpress plugin panel.

    1. No « add new » plugin options
    2.No « trash » plugin options
    3.Other issue is I can not find the « editor » in appearance panel

    Would you like to let me know how can i fix this?

    • Rizqi

      I have same issues, it also can’t update existing plugins, because the link is gone. Have got the solutions?

  31. Jacqueline

    Hi. I purchased the Divi theme and plug in file. The theme uploaded fine but when I go to upload the plug in file it fails. Anything I can do? Thank you for your support on this matter.

  32. Aziz Nazarov

    Hello,

    Thank you for sharing such a valuable info.
    Maybe this’s a bit off topic question.
    I’m having a small issue at the moment with adding a new submenu page.
    So basically I got an Astra Theme (not a pro version) with Beaver Builder.
    I add the page as usual then add to the menu under sub-item, all looks good.
    But when I click on the sub menu page it doesn’t take me there. It basically takes me to a home page.
    What could be an issue? Could you help me please?
    Thank you

  33. Sir Joe

    Thanks a lot! Your article helped me

  34. candy

    I cannot activated and install my plugin.

    Parse error: syntax error, unexpected T_FUNCTION, expecting ‘)’ in E:\AppServ\www\shopify\wp-content\plugins\ninja-fb-private-reply\src\Facebook\autoload.php on line 45

    please help me fix this .

  35. Mark

    Hi, I cant log on to my wordpress account. It says « ERROR: There is no user registered with that email address. » I know for a fact that that is the correct email address associated with the account.. Please help!!! I dont have any of the other information required to reset the account (such as transaction ID) HELP!!!!

  36. mark

    should I switch to wix or weebly? this is stupid. I have to sit here for hours googling to not be able to do the stupidest simplest things. I don’t want to learn wordpress I just want a simple ecommerce site that wont be like a college course to get set up.

    M

  37. lokesh

    I’m getting this message while installing the plugins.

    An unexpected error occurred. Something may be wrong with WordPress.org or this server’s configuration. If you continue to have problems, please try the support forums.

    How to solve please help

  38. Yeboah Martin

    I had this message when trying to upload a plugin:

    POST Content-Length of 11688443 bytes exceeds the limit of 8388608 bytes in Unknown on line 0

      • Tabish

        Hi! Wanted to ask you guyz two things: You guyz run this website on WordPress, right? Which theme do you use? And like YEBOAH MARTIN said, I was facing the same error when I tried to create a video streaming site and uploaded videos. I did increase the file size limit to 977 GB! And I am sure that it isn’t the storage, as my hosting provider has made unlimited disk storage available! (Cuz I created that hosting service!)

  39. Jitendra Mahato

    Hi,
    I have migrated my blog yesterday. All the things are good but the error in the plugin. I have deleted all the plugins. After then, while i am starting to install the plugin, then No, any plugin is adding..
    While adding….
    Messages lke this…
    Could not create directory. /home/danfeh5/public_html/example.com/wp-content/plugins/boombox-theme-extensions

  40. Angelo

    Hi.Why is it my comment section is closed?Even if i downloaded comment plugin it seems nothing changed

    • WPBeginner Support

      Hi Angelo,

      If comments are closed on all your articles, then go to Settings » Discussion page inside WordPress admin area and check the box next to ‘Allow people to post comments on new articles’ option. Any new article you now add will have comments enabled by default.

      For your older article you will have to edit them and then on the post edit screen click on the Screen Options button at the top right corner of the screen. Check the box next to Discussion option. Now scroll down below the post editing area and you will see a Discussion meta box where you need to check the option ‘Allow Comment’ option.

      Administrateur

  41. Lisa

    Hi I got this when trying to install jetpack and its not on my list of plugins and I am not sure what to do Installing Plugin from uploaded file: jetpack.4.9.zip
    Unpacking the package…

    Installing the plugin…

    Destination folder already exists. /home/content/p3pnexwpnas02_data01/46/2075146/html/wp-content/plugins/jetpack/

    Plugin install failed.

    Return to Plugin Installer

    • WPBeginner Support

      Hey Lisa,

      Your website already has a folder called jetpack. You need to connect to your website using an FTP client or File manager in Cpanel and delete that folder to install the plugin from the zip file.

      Administrateur

  42. Omar

    Hi, I can see and add plugins in « my » installation (its not a multisite) of wordpress but suddenly there’s no option for activate/delete under the plugin name, but I still can do this trough the bulk actions option… did someone know why this happens?

  43. Omprakash

    Hi Why none of WP Plugins are installing in my WP Dashboard please Help me

  44. Rafael

    I was added as ‘admin’ in a multisite WordPress so I couldn’t see the Plugins. Asked for the ‘network admin’ to enable Plugins in ‘Network Configurations’ but looks like that just allows me to see the Plugins, still not able to install new plugins.

    • WPBeginner Support

      Hey Rafael,

      The network admin or super admin can allow individual site admins to activate or deactivate plugins on their own.

      Administrateur

      • Rafael

        Thank you for the reply, I got it now. It just wasn’t clear, I see now that only the network admin can install new plugins.

  45. zork

    awesome man: define(‘WP_MEMORY_LIMIT’, ’64M’);

    this solved my problem after a migration from local to production

    thank you so much!

  46. Ankur Sharma

    i have installed wordpress on pc with xampp. when i install ULTIMATE MEMBER plugin it shows an error and when i upload the plugin it shows the memory limit problem..
    i have already added that line you mentioned i.e.
    define(‘WP_MEMORY_LIMIT’, ’64M’);

    and also i have changed a line in php.ini file in xampp

    ; Maximum allowed size for uploaded files.
    upload_max_filesize=3000M

    nothing is working .. please help me ..
    Thanks!!

  47. tom bukkots

    Can’t add or delete plugins in WordPress

  48. Nicole

    I have wordpress.com/wp-admin.. I have admin rights and i still have no options for adding new plugins. Any suggestions?

  49. Ali Shair

    if i Host my wordpress.com site on Hostgator or go daddy then it is possible to upload themes or plugins

    • WPBeginner Support

      Hi Ali,

      No you cannot host your WordPress.com site anywhere else. You will need to use self hosted WordPress.org.

      Administrateur

  50. Betina

    Hi,
    If I buy a domain from wordpress.COM will it let me download and install plugins like adsense?

    Thanks!

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