$ phpcs --standard=Drupalpractice --extensions=php,module,inc,install,test,profile,theme,css,info,txt,md,yml devel_mail_logger/
FILE: C:\xampp\htdocs\contribution\web\modules\contrib\devel_mail_logger\src\Controller\DevelMailLoggerController.php
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205 | WARNING | t() calls should be avoided in classes, use \Drupal\Core\StringTranslation\StringTranslationTrait and $this->t() instead
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FILE: C:\xampp\htdocs\contribution\web\modules\contrib\devel_mail_logger\src\Form\DevelMailLoggerDeleteForm.php
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FOUND 0 ERRORS AND 8 WARNINGS AFFECTING 8 LINES
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28 | WARNING | t() calls should be avoided in classes, use \Drupal\Core\StringTranslation\StringTranslationTrait and $this->t() instead
29 | WARNING | t() calls should be avoided in classes, use \Drupal\Core\StringTranslation\StringTranslationTrait and $this->t() instead
36 | WARNING | t() calls should be avoided in classes, use \Drupal\Core\StringTranslation\StringTranslationTrait and $this->t() instead
42 | WARNING | t() calls should be avoided in classes, use \Drupal\Core\StringTranslation\StringTranslationTrait and $this->t() instead
43 | WARNING | t() calls should be avoided in classes, use \Drupal\Core\StringTranslation\StringTranslationTrait and $this->t() instead
50 | WARNING | t() calls should be avoided in classes, use \Drupal\Core\StringTranslation\StringTranslationTrait and $this->t() instead
51 | WARNING | t() calls should be avoided in classes, use \Drupal\Core\StringTranslation\StringTranslationTrait and $this->t() instead
67 | WARNING | t() calls should be avoided in classes, use \Drupal\Core\StringTranslation\StringTranslationTrait and $this->t() instead
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Time: 242ms; Memory: 6MB
Fixed
1.0
Code
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It's likely this issue predates Contrib.social: some issue and comment data are missing.
git commit -m 'Issue #3293062 by Rakhi Soni: t() calls should be avoided...
Thanks, slightly modified and commited.
FormBase and ControllerBase already have StringTranslationTrait, so no need to have a use statement again.