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Twig error

Twig\Error\SyntaxError: Unknown "filter" tag. in Twig\Parser->subparse() (line 6 of themes/custom/{theme}/templates/views/views-view-field--products--field_product_type.html.twig).

Line 6 of the views-view-field--products--field_product_type.html.twig file is 

{% filter upper|escape('html') %}

The actual Twig file code

{% filter upper|escape('html') %}
    {{ view.field.field_product_type.original_value  -}}
{% endfilter %}

In Drupal 10, this is producing the error noted above - Unknown "filter" tag

 

Solution

Change the code as follows

{{ view.field.field_product_type.original_value|upper|escape('html') -}}

 

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