Can you please share the message of the error?
And describe what you are doing?
thanks for the fast response, CE6881 is an image uolader must be placed inside a data view or snippet connected to entity”system. image’ or a specalization. i just want to use this widget, and i do place it in a data view.
Indeed as Rom indicates, the image uploader only works directly with a (specialization of) Image Entity.
Best way for now is to generalize the Teacher entity by the image entity