I ran into the same issue – I had previously installed other plugins to accomplish what I wanted and one of them was still installed/Active – once I deactivated/deleted it, the errors disappeared – perhaps this will help you –
Information:
WordPress: 3.8.1
Enhanced Media Library 1.0.4
Previously used plug-in: Unattach Re-Attach Media
Sincerely
Tamrah Jo
Hello,
Thank you both for information and your request! Looks like a minor bug. If in general the plugin works for you, just ignore it. I will test and improve the code with the next upgrade.
A small question: can you see this warning during activation only or permanently in admin?
Thank you.
Nadia
Hi Nadia,
For me, the warning appeared and stayed until I deactivated/deleted the “Unattach/Reattach Media” plug-in. Since I was trying a host of different plugins to find which would accomplish best what I wanted, I suspect there was a run-in between the aforementioned plug in and yours, but since I’m not an expert, that may not be a correct hypotheses or helpful to you in your troubleshooting, but alas, it is the only thing I’m aware of.
Thanks!
Tamrah Jo
Hi Tamrah,
Thanks for information. I will fix it for the next version.
Nadia