I’m looking for the answer on this as well.
I figured it out… after removing the second plugin, I also removed and re-added the podcast, that did the trick. I’m guessing that triggered the feed to be recreated (without errors).
I’m getting the same error…
This feed does not validate.
line 10, column 0: XML parsing error: <unknown>:10:0: duplicate attribute
xmlns:itunes=”http://www.itunes.com/dtds/podcast-1.0.dtd”>
I did have two podcasting apps and I removed one. the error remains. Help!