我想在树枝中使用 trancate 过滤器，但出现错误：
The file "D:\projets\dzairdeals\config/services.yaml" does not contain valid YAML: Indentation problem in "D:\\projets\\dzairdeals\\config/services.yaml" at line 30 (near " twig.extension.text:") in D:\projets\dzairdeals\config/services.yaml (which is loaded in resource "D:\projets\dzairdeals\config/services.yaml").
当我尝试将此行添加到我的services.yaml
twig.extension.text:
class: Twig_Extensions_Extension_Text
tags: - { name: twig.extension }