I can't create apache derby DB in worklight 6.0

I can't create apache derby DB in worklight 6.0

I upgraded to worklight 6.0. I added both derby_core_plugin_10_8_2,
derby_iu_doc_plugin_1.1.3, into eclipse-->plugins I restarted Eclipse and
right click my project to add Apache Derby nature...nothing seems to
happened, then I tried to go directly to server/java-->apache derby--> run
SQL Script using "ij"...I get (the selected project does not have Apache
derby nature please add it and try again)