ZoteroImport Hangs

I have Omeka 1.5.3 installed on a MAMP for playing around with. I just installed the ImportZotero plugin. When I tried to import a folder of 4 items from my Zotero collection the process hangs. In the imports list, the group "tutorial" appears as "starting." Nothing happens after that. For a while and then another while. The log file is empty, though I have the config.ini file tweaked to record the processes. I think the GET is arriving at the API door and sitting there like the man in Kafka's heaven. The feed for my group is:


Any ideas?