IOS client access, the library does not display content.

[FEr]

    * The calibre version (get this by looking at the bottom of the main calibre screen)
calibre win64 5.29.0
calibre companion 2.0.15
  * The operating system you are running calibre on (Windows, OS X, Linux)
windows 10 21H1 19043.1288
ipad pro 2020 ios 15.0.2

calibre server listening on 0.0.0.0:8080
Unhandled exception in state: State: _job_done Client: 192.168.1.101:63929 Request: GET /opds/navcatalog/4f7469746c65?library_id=BOOK HTTP/1.1
Traceback (most recent call last):
  File "calibre\srv\loop.py", line 621, in tick
  File "calibre\srv\loop.py", line 345, in _job_done
  File "calibre\srv\http_response.py", line 502, in job_done
  File "polyglot\builtins.py", line 61, in reraise
  File "calibre\srv\pool.py", line 35, in run
  File "calibre\srv\http_response.py", line 459, in run_request_handler
  File "calibre\srv\routes.py", line 313, in dispatch
  File "calibre\srv\opds.py", line 520, in opds_navcatalog
  File "calibre\srv\opds.py", line 417, in get_all_books
  File "calibre\srv\opds.py", line 402, in get_acquisition_feed
  File "calibre\srv\opds.py", line 332, in __init__
  File "calibre\srv\opds.py", line 213, in ACQUISITION_ENTRY
  File "calibre\srv\opds.py", line 123, in html_to_lxml
  File "src/lxml/etree.pyx", line 3437, in lxml.etree.tostring
  File "src/lxml/serializer.pxi", line 139, in lxml.etree._tostring
  File "src/lxml/serializer.pxi", line 199, in lxml.etree._raiseSerialisationError
lxml.etree.SerialisationError: IO_ENCODER

Unhandled exception in state: State: _job_done Client: 192.168.1.101:63933 Request: GET /opds/navcatalog/4f6e6577657374?library_id=BOOK HTTP/1.1
Traceback (most recent call last):
  File "calibre\srv\loop.py", line 621, in tick
  File "calibre\srv\loop.py", line 345, in _job_done
  File "calibre\srv\http_response.py", line 502, in job_done
  File "polyglot\builtins.py", line 61, in reraise
  File "calibre\srv\pool.py", line 35, in run
  File "calibre\srv\http_response.py", line 459, in run_request_handler
  File "calibre\srv\routes.py", line 313, in dispatch
  File "calibre\srv\opds.py", line 520, in opds_navcatalog
  File "calibre\srv\opds.py", line 417, in get_all_books
  File "calibre\srv\opds.py", line 402, in get_acquisition_feed
  File "calibre\srv\opds.py", line 332, in __init__
  File "calibre\srv\opds.py", line 213, in ACQUISITION_ENTRY
  File "calibre\srv\opds.py", line 123, in html_to_lxml
  File "src/lxml/etree.pyx", line 3437, in lxml.etree.tostring
  File "src/lxml/serializer.pxi", line 139, in lxml.etree._tostring
  File "src/lxml/serializer.pxi", line 199, in lxml.etree._raiseSerialisationError
lxml.etree.SerialisationError: IO_ENCODER

192.168.1.101 port-63929 - 20/10月/2021:22:19:33 +0800 "GET /opds/navcatalog/4f7469746c65?library_id=BOOK HTTP/1.1" HTTPStatus.INTERNAL_SERVER_ERROR 154
192.168.1.101 port-63930 - 20/10月/2021:22:19:41 +0800 "GET /opds/category/7075626c6973686572/49313a7075626c6973686572?library_id=BOOK HTTP/1.1" HTTPStatus.OK 2330
192.168.1.101 port-63930 - 20/10月/2021:22:19:41 +0800 "GET /get/thumb/17/BOOK HTTP/1.1" HTTPStatus.OK 2097
192.168.1.101 port-63933 - 20/10月/2021:22:22:11 +0800 "GET /opds/navcatalog/4f6e6577657374?library_id=BOOK HTTP/1.1" HTTPStatus.INTERNAL_SERVER_ERROR 154

[Kovid Goyal (kovid)]

I need the metadata.db file from the calibre library folder as well.

 status incomplete

[FEr (sqaiif0g0c)]

The files are in this compressed package

[Kovid Goyal (kovid)]

Fixed in branch master. The fix will be in the next release. calibre is usually released every alternate Friday.

 status fixreleased