Traceback (most recent call last):


 "/Applications/Develop/Armory/blender.app//armsdk//armory/blender/arm/props_ui.py", line 290, in draw

layout.prop(bpy.data.worlds['Arm'], 'arm_material_advanced')
KeyError: 'bpy_prop_collection[key]: key "Arm" not found'

Traceback (most recent call last):



 "/home/maitesin/.local/lib/python2.7/site-packages/flask/app.py", line 1982, in wsgi_app


response = self.full_dispatch_request()



 "/home/maitesin/.local/lib/python2.7/site-packages/flask/app.py", line 1614, in full_dispatch_request


rv = self.handle_user_exception(e)



 "/home/maitesin/.local/lib/python2.7/site-packages/flask/app.py", line 1517, in handle_user_exception


reraise(exc_type, exc_value, tb)



 "/home/maitesin/.local/lib/python2.7/site-packages/flask/app.py", line 1612, in full_dispatch_request


rv = self.dispatch_request()



 "/home/maitesin/.local/lib/python2.7/site-packages/flask/app.py", line 1598, in dispatch_request


return self.view_functions[rule.endpoint](**req.view_args)



 "http-whitespace.py", line 9, in index


length = 0 if request.headers['Content-Length'] == "" else int(request.headers['Content-Length'])



 "/home/maitesin/.local/lib/python2.7/site-packages/werkzeug/datastructures.py", line 1348, in __getitem__


return _unicodify_header_value(self.environ[key])

KeyError: 'CONTENT_LENGTH'
