Problème 500 : Internal Server ERROR

Question

Après avoir travaillé plusieurs heures sur une page, je me trouve avec ce message d'erreur , comment puis je solutionner le problème, sachant que "restaurer la version précédente ne fonctionne pas.

L'erreur s'est produite lors du rendu du modèle 1507 et de l'évaluation des expressions suivantes : <t t-call="website.layout"/>

Error while rendering the template:
    KeyError: 'http://www.w3.org/XML/1998/namespace'
    Template: 1507
    Reference: 1507
    Path: /t/t
    Element: <t t-call="website.layout"/>
    From: (1507, '/t/t', '<t t-call="website.layout"/>')

Jainesh Shah(Aktiv Software) · Answer

Hi khaled Salem,

Could you please share the details of the error and describe what you were doing when it happened?
Here are a few things you can try in the meantime:
This is an Odoo website/QWeb template error. The KeyError: ' http://www.w3.org/XML/1998/namespace' [1] means a required XML namespace is missing or corrupted in your template. Here are the solutions to try, in order:
*Clear Browser Cache & Session* — Sometimes the rendering engine gets stuck with a bad state.
Hard refresh: Ctrl +

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