I have checked the forum topics and I saw, there are lots of similar questions been there, but maybe my problem is a bit differ.
I have a model downloaded from a public site in obj format. The directory contains an .obj, a .mtl, a .tga and some .jpg files.
I use the jmonkeyengine SDK 3.1 and its bounded blender (2.78). I have installed the ogre XML tool trough Tools>OGRE XML>Install Blender OgreXML, and I test it by a simple cube, seems to work.
When I import the model above, there is no error, but the OGRE XML export menu item is inactive under the export menu. I am in object mode.
Can anybody help me?