BlueSkies
El Presidente
Just Getting Started
Member Likes (0)
I believe that I have found a conflict between your MailChimp Newsletter Integration plugin and the official MailChimp List Subscribe Form plugin.
I am using the latest versions of each:
MailChimp Newsletter Integration version 1.1.1 (shows up as MailChimp Sync in plugin list on WP)
MailChimp List Subscribe Form version 1.2.1 available here - http://wordpress.org/extend/plugins/mailchimp/
I am using a WPMU setup, activating MailChimp List Subscribe Form on the main blog only and a network activate for MailChimp Newsletter Integration.
When both are active, the drop down box for MailChimp List Subscribe Form is empty - showing no lists - after the API key is entered and verified. Deactivating MailChimp Newsletter Integration causes MailChimp List Subscribe Form to work again (showing my mailing lists in dropdown box). I've tried this several times, deactivating/activating MailChimp Newsletter Integration.
This following thread may be relevant:
http://wordpress.org/support/topic/plugin-mailchimp-list-subscribe-form-mail-lists-dropdown-empty-after-api-entered
- Scott

Responses (5)
Member (joined April 2009) Likes (0)
Hiya Scott,
Thanks for letting us know. I can confirm this as an issue on my install as well (hadn't tried both of these together previously). I'll ask the developers to take a look and see what they can find.
I'm not seeing anything in the server error logs.
Thanks again for reporting!
Lead Developer (joined May 2009) Likes (0)
Took a quick look over their code. Something in there is breaking it. Our plugin does check for other versions of the MCAPI class to avoid conflicts. I'm afraid it's beyond our ability to debug another plugin.
Member (joined October 2010) Likes (0)
The response from MailChimp is here:
http://wordpress.org/support/topic/plugin-mailchimp-list-subscribe-form-problem-with-mcapi-class-conflict-with-mailchimp-newsletter-integration-plugin?replies=2#post-1932618
They mentioned:
"I'm certain it's b/c they are both using the MCAPI wrapper class we provide without namespacing it."
I'm not a PHP expert, so I'm not sure what they are referring to exactly? Does the WPMU Dev plugin need to be namespaced?
Thanks,
Scott
Lead Developer (joined May 2009) Likes (0)
We don't namespace it, but are careful to not load it if another plugin already has as in this case to avoid errors. Unless they have changed the MCAPI class don't see how that is the issue.
Member (joined April 2009) Likes (0)
FYI, it looks like they've updated their plugin to address this:
http://wordpress.org/extend/plugins/mailchimp/changelog/
Thanks!
Become a member