Issue #2902903 by zenimagine: Error with installation

CHANGELOG.md

README.md

...tity_view_display.message_thread.conversation.default.yml

config/optional/views.view.private_messages.yml

message_thread.info.yml

message_thread.install

message_thread.module

message_thread.permissions.yml

src/Controller/MessageThreadController.php

src/Form/MessageThreadForm.php

src/Form/MessageThreadTemplateForm.php

src/MessageThreadListBuilder.php

src/MessageThreadPermissions.php

src/Plugin/Derivative/DynamicLocalTasks.php

src/Routing/MessageThreadRoutes.php