ADF - JSTL 1.1 Tags, JSTL 1.2 Tags.

Must choose only one of libraries: JSTL 1.1 Tags, JSTL 1.2 Tags.

To fix this error, right click on your Project View controller, Select Project Properties

Project Properties

Click on Libraries and Classpaths, and in this case I had three duplicates to I selected then all, as I needed none of them, as the library was already included at the top.

I clicked Remove, OK and then I was done.

make sure you don't remove all of these Libraries.

#bearMan, saving you money, putting you first.