7 files declare their use of ProjectTrait in Drupal PM (Project Management) 4.x

Board.php in modules/pm_board/src/Entity/Board.php

Epic.php in modules/pm_epic/src/Entity/Epic.php

Expense.php in modules/pm_expense/src/Entity/Expense.php

Feature.php in modules/pm_feature/src/Entity/Feature.php

Invoice.php in modules/pm_invoice/src/Entity/Invoice.php

Story.php in modules/pm_story/src/Entity/Story.php

SubTask.php in modules/pm_sub_task/src/Entity/SubTask.php