При запуске программы "flutter_document_reader" выдается такая ошибка. Может кто подсказать в чем может быть проблема?

Вот ошибка: E/flutter (24835): [ERROR:flutter/lib/ui/ui_dart_state.cc(209)] Unhandled Exception: PlatformException(, database preparation failed: com.regula.documentreader.api.errors.DocumentReaderException: java.lang.NullPointerException: Core API is absent. You should include Core API to your project., null, null)

Хотя в папке pubspec.yaml я все прописал: dependencies: flutter_document_reader_core_barcode: ^5.8.0 flutter_document_reader_core_barcodemrz: ^5.8.0 flutter_document_reader_core_barcodemrzrfid: ^5.8.0 flutter_document_reader_core_bounds: ^5.8.0 flutter_document_reader_core_doctype: ^5.8.0 flutter_document_reader_core_full: ^5.8.0 flutter_document_reader_core_fullrfid: ^5.8.0 flutter_document_reader_core_mrz: ^5.8.0 flutter_document_reader_core_mrzrfid: ^5.8.0 flutter_document_reader_core_ocrandmrz: ^5.8.0 flutter_document_reader_core_ocrandmrzrfid: ^5.8.0

вот ссылка на код reader:https://github.com/regulaforensics/DocumentReader-Flutter