This knowledge base article contains most of the reader error codes in Dolphin EasyReader which may appear when you load a book into the reader view.
Unable to open this book (1: Err_FileNotFound)
It seems like the book cannot be found on your device. Please download the book again from your library and try again. If the book was sideloaded, please remove the book item from My Books list and sideload the book again.
PDFium module, which is responsible for handling PDF files in Dolphin EasyReader has failed to load (2: Err_PDF_PDFium_not_loaded)
Please remove the EasyReader app, install the latest version and try again.
Unable to open this PDF due to a missing or incorrect password. (3: Err_PDF_requires_password)
Dolphin EasyReader currently do not support password protected PDFs.
Unable to open this PDF book due to DRM protection, which is currently unsupported by Dolphin EasyReader (4: Err_PDF_DRM_protected)
This PDF is DRM protected which Dolphin EasyReader currently do not support. Please contact your library and see if other DRM free versions of the same book is available for you to use in Dolphin EasyReader.
Unable to open this PDF as no pages have been detected. Please try opening another file (5: Err_PDF_no_pages)
This error may happen for PDFs that do not contain any text at all and therefore this PDF cannot be loaded into Dolphin EasyReader. Please contact your library to see if alternative text-based PDF versions of this book is available.
Unable to open this PDF, please try opening another file (6: Err_PDF_load_error)
This PDF could not be loaded. You can test to download the PDF again from your library. Alternatively, please contact your library to see if alternative text-based PDF versions of this book is available.
Unable to open this book due to a missing OPF (Open Packaging Format) file (7: Err_OpfParseError)
The OPF file of this book is missing or is invalid XML. This may be due to a transfer issue over Internet. Please test to download this book again and try again. If the problem remains, please contact your library, and report a problem of this book.
Unable to open this book due to a missing NCC (Navigation Control Center) file (8: Err_NccParseError)
The NCC.HTML file of this book is missing or is invalid XML. This may be due to a transfer issue over Internet. Please test to download this book again and try again. If the problem remains, please contact your library, and report a problem of this book.
Unable to open this book due to a missing or unreadable file. (9: Err_XmlParseError)
A file of in this book is missing or is invalid XML. This may be due to a transfer issue over Internet. Please test to download this book again and try again. If the problem remains, please contact your library, and report a problem of this book.
Unable to open this book due to a missing HTML file (10: Err_HtmlParseError)
A HTML file of in this book is missing or is invalid XML. This may be due to a transfer issue over Internet. Please test to download this book again and try again. If the problem remains, please contact your library, and report a problem of this book.
Unable to open the book for streaming (11: Err_DODPStreamError)
An unhandled error happened when opening a streaming book. This may be due to unreliable Internet connection or that the library server is currently unavailable. Please try again later or remove this book from My Books and borrow/download the book again from your library.
If the problem persists, please consider downloading the book to your local device, instead of using the streaming option.
Unable to access the library to stream this book (12: Err_DODPStreamLoginError)
This error can only happen on library login issues when attempting to open a streaming book into he reader view. This may be due to unreliable Internet connection or that the library server is currently unavailable. It may also happen if you recently changed your password for your library account.
If the problem persists, please consider downloading the book to your local device, instead of using the streaming option.
Unable to open this book due to it having expired or been returned to the library (13: Err_DODPStreamIssueContentError)
This error code may happen when the streaming book have been returned to your library. Please borrow the book again from your library and try again.
If the problem persists, please consider downloading the book to your local device, instead of using the streaming option.
Unable to open this book due to an unknown error.
We do not have any information of the reasons why the book could not be opened in the reader view. If you are not using v11 or later, we encourage you to update your Dolphin EasyReader to v11 or later.