Error saving books on disk

[Lorenzo García Blas]

I've just updated calibre to 5.8 version.
I'm using Ubuntu 20.04

I'm trying to save books on disk. As long as I save just one, or several of them, and in any of the five options that I get clicking right button and Save on disk, I get this error:

calibre, version 5.8.0
ERROR: Error al guardar: Fallo al guardar cualquier libro en el disco, pulse en «Mostrar detalles» para más información

Fallo al guardar: Un pistolero de Arizona por M. L. Estefanía en el disco, con el error:
    Traceback (most recent call last):
      File "calibre/library/save_to_disk.py", line 279, in get_path_components
      File "calibre/library/save_to_disk.py", line 244, in get_components
      File "calibre/utils/formatter.py", line 862, in unsafe_format
    TypeError: evaluate() missing 1 required positional argument: 'global_vars'

    During handling of the above exception, another exception occurred:

    Traceback (most recent call last):
      File "calibre/gui2/save.py", line 128, in do_one_collect
      File "calibre/gui2/save.py", line 136, in collect_data
      File "calibre/library/save_to_disk.py", line 285, in get_path_components
    ValueError: No se pudo generar la ruta para guardar en disco. Plantilla: {author_sort}/{title}/{title} - {authors}
    Error: evaluate() missing 1 required positional argument: 'global_vars'

Thank you.

[Kovid Goyal (kovid)]

Changing the component for this bug.

 assignee cbhaley
 status triaged

[Kovid Goyal (kovid)]

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

 status fixreleased

[Kovid Goyal (kovid)]

version 5.8.1 with th efix will be realeased in an hour or so.