ebin/gradualizer_file_utils.beam: Call to undefined function epp:open/5 on line 66 at column 16
ebin/rebar_prv_gradualizer.beam: Undefined remote type rebar_state:t/0 on line 8 at column 11
ebin/rebar_prv_gradualizer.beam: Undefined remote type rebar_state:t/0 on line 22 at column 9
ebin/rebar_prv_gradualizer.beam: Undefined remote type rebar_app_info:t/0 on line 37 at column 28
ebin/rebar_prv_gradualizer.beam: Undefined remote type rebar_app_info:t/0 on line 49 at column 21
ebin/rebar_prv_gradualizer.beam: Call to undefined function rebar_dir:src_dirs/2 on line 90 at column 24