# TypeError : impossible de lire les propriétés de null (lecture de 'en')

**URL:** <https://meta.discourse.org/t/typeerror-cannot-read-properties-of-null-reading-en/284204>\
**Category:** Bug\
**Created:** [Novembre 2, 2023, 12:40 UTC](https://meta.discourse.org/t/typeerror-cannot-read-properties-of-null-reading-en/284204 "2023-11-02T12:40:35Z")\
**Posts on this page:** 1\
**Showing post:** 1

<div class="post-metadata">

**Author:** ![Jagster](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/jagster/32/192154_2.png) [@Jagster](https://meta.discourse.org/u/Jagster)\
**Post date:** [Novembre 2, 2023, 12:40 UTC](https://meta.discourse.org/t/typeerror-cannot-read-properties-of-null-reading-en/284204/1 "2023-11-02T12:40:35Z")

</div>

Plusieurs composants de thème génèrent ceci dans le journal d’erreurs. Effrayant, préoccupant ou sans importance ?

```plaintext
Message

Le thème/composant Dark-Light Toggle génère des erreurs :
TypeError : Impossible de lire les propriétés de null (lecture de 'en')

Trace

TypeError : Impossible de lire les propriétés de null (lecture de 'en')
    at Object.initialize (https://foorumi.katiska.eu/theme-javascripts/92797a07aed2d6fbf5516744df323979636ce2b5.js?__ws=foorumi.katiska.eu:5:51)
    at n.initialize (https://cdnfoorumi.katiska.eu/assets/chunk.539f39cb06cf0acef810.br.js:2:333868)
    at https://cdnfoorumi.katiska.eu/assets/vendor.ebcffa63b65b920d5cfc189685c4d511-cd53f38a5ad23a4ddfa97ff23cda9bb0c96e8e22feff0d58d2409d2b3683e3b6.br.js:21:274204
    at e.each (https://cdnfoorumi.katiska.eu/assets/vendor.ebcffa63b65b920d5cfc189685c4d511-cd53f38a5ad23a4ddfa97ff23cda9bb0c96e8e22feff0d58d2409d2b3683e3b6.br.js:21:455828)
    at e.walk (https://cdnfoorumi.katiska.eu/assets/vendor.ebcffa63b65b920d5cfc189685c4d511-cd53f38a5ad23a4ddfa97ff23cda9bb0c96e8e22feff0d58d2409d2b3683e3b6.br.js:21:454844)
    at e.each (https://cdnfoorumi.katiska.eu/assets/vendor.ebcffa63b65b920d5cfc189685c4d511-cd53f38a5ad23a4ddfa97ff23cda9bb0c96e8e22feff0d58d2409d2b3683e3b6.br.js:21:454197)
    at e.topsort (https://cdnfoorumi.katiska.eu/assets/vendor.ebcffa63b65b920d5cfc189685c4d511-cd53f38a5ad23a4ddfa97ff23cda9bb0c96e8e22feff0d58d2409d2b3683e3b6.br.js:21:454243)
    at e._runInitializer (https://cdnfoorumi.katiska.eu/assets/vendor.ebcffa63b65b920d5cfc189685c4d511-cd53f38a5ad23a4ddfa97ff23cda9bb0c96e8e22feff0d58d2409d2b3683e3b6.br.js:21:274529)
    at e.runInitializers (https://cdnfoorumi.katiska.eu/assets/vendor.ebcffa63b65b920d5cfc189685c4d511-cd53f38a5ad23a4ddfa97ff23cda9bb0c96e8e22feff0d58d2409d2b3683e3b6.br.js:21:274162)

Env

HTTP HOSTS : foorumi.katiska.eu

```

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_[View the full topic](https://meta.discourse.org/t/typeerror-cannot-read-properties-of-null-reading-en/284204)._