While configuring my Onyx Boox T68 as a wireless device in Calibre I got the error message below. This is the same save template I use for my Nexus 7 and when I went to configure while my Nexus 7 was connected I got the same error. The template works fine, I just get an error if I try to save the configuration. Any ideas?
calibre, version 1.42.0
ERROR: Invalid template: <p>The template {#genre}/{author_sort:list_item(0,&)}/{title} - {author:list_item(0,&)} is invalid:<br>'ValidateFormatter' object has no attribute 'strip_results'