install problem

[Bordbonen]

Hey,
While working in orange3env in linux

I tried both via the options/add-ons and via 'pip install https://github.com/biolab/orange3-recommendation/tarball/0.1.3' installing the add-on

But when i open one of the two examples 'Baselines (recommendation)' or 'Latent factor models':
I get the warning:

Errors occurred while loading the workflow.
There were problems loading some of the widgets/links in the workflow.
Details:
ValueError("'Predictor' is not a valid output channel name for 'Baselines'.",)

and in the command line i get many error messages while it loads the example:

....(most is a repetition of the following:)
/home/dunc/Work/orange/orange3env/lib/python3.4/site-packages/orangecontrib/recommendation/utils/format_data.py:72: UserWarning: Row meta attribute not found. Applying heuristics {users: col=0}
  warnings.warn(text_warning)
/home/dunc/Work/orange/orange3env/lib/python3.4/site-packages/orangecontrib/recommendation/utils/format_data.py:77: UserWarning: Column meta attribute not found. Applying heuristics {items: row=1}
  warnings.warn(text_warning)
unable to set <Orange.widgets.gui.OrangeComboBox object at 0x7fafb57ccc18> to value 'None'. Possible values are 
unable to set <Orange.widgets.gui.OrangeComboBox object at 0x7fafb5741dc8> to value 'None'. Possible values are 
/home/dunc/Work/orange/orange3/Orange/evaluation/testing.py:353: OrangeWarning: Working with small-enough data; single-threaded sequential excecution will (probably) be faster. Setting n_jobs=1
  "Setting n_jobs=1", OrangeWarning)
/home/dunc/Work/orange/orange3env/lib/python3.4/site-packages/orangecontrib/recommendation/utils/format_data.py:72: UserWarning: Row meta attribute not found. Applying heuristics {users: col=0}
  warnings.warn(text_warning)
/home/dunc/Work/orange/orange3env/lib/python3.4/site-packages/orangecontrib/recommendation/utils/format_data.py:77: UserWarning: Column meta attribute not found. Applying heuristics {items: row=1}
  warnings.warn(text_warning)
/home/dunc/Work/orange/orange3env/lib/python3.4/site-packages/orangecontrib/recommendation/base_recommendation.py:110: RuntimeWarning: invalid value encountered in true_divide
  averages_users = sums_users / countings_users
/home/dunc/Work/orange/orange3env/lib/python3.4/site-packages/orangecontrib/recommendation/base_recommendation.py:127: RuntimeWarning: invalid value encountered in true_divide
  averages_items = sums_items / countings_items

(python:15531): Gtk-CRITICAL **: IA__gtk_widget_get_direction: assertion 'GTK_IS_WIDGET (widget)' failed

(python:15531): Gtk-CRITICAL **: IA__gtk_widget_get_direction: assertion 'GTK_IS_WIDGET (widget)' failed

Thanks in advance!