[sylpheed:36573] new installed sylpheed 3.5.0beta1 (Build 1161) does not download mail?

[Rien Mertens]

after trying to get my mail I got this in the log:

** Sylpheed-WARNING: Couldn't execute curl
** Sylpheed-WARNING: g_spawn_async_with_pipes: Uitvoeren van dochterproces
‘curl’ is mislukt (Bestand of map bestaat niet)
** LibSylph-CRITICAL: folder_item_get_uncached_msg_list: assertion 'item !=
NULL' failed

What might cause this?



-- 
Rien Mertens                   rien at mertensmaatwerk.nl
Mertens Maatwerk
Tweeberg 1 A 5246 XL Rosmalen  KvKnmr:  50305980
+31 (073) 6415517              BTWnmr: NL093370374B01