notice: ./mikutter.rb:45:in `<main>': fire boot event
GdkPixbuf-CRITICAL **: gdk_pixbuf_new_from_file_at_scale: assertion 'width > 0 || width == -1' failed
        from D:/mikutter/mikutter/vendor/bundle/ruby/2.6.0/gems/gobject-introspection-3.3.7/lib/gobject-introspection/loader.rb:616:in `invoke'
        from D:/mikutter/mikutter/vendor/bundle/ruby/2.6.0/gems/gobject-introspection-3.3.7/lib/gobject-introspection/loader.rb:306:in `block (2 levels) in load_constructor_infos'
        from D:/mikutter/mikutter/vendor/bundle/ruby/2.6.0/gems/gdk_pixbuf2-3.3.7/lib/gdk_pixbuf2/pixbuf.rb:113:in `initialize_with_hash'
        from D:/mikutter/mikutter/vendor/bundle/ruby/2.6.0/gems/gdk_pixbuf2-3.3.7/lib/gdk_pixbuf2/pixbuf.rb:26:in `initialize'
        from D:/mikutter/mikutter/vendor/bundle/ruby/2.6.0/gems/gdk_pixbuf2-3.3.7/lib/gdk_pixbuf2/deprecated.rb:45:in `new'
        from D:/mikutter/mikutter/vendor/bundle/ruby/2.6.0/gems/gdk_pixbuf2-3.3.7/lib/gdk_pixbuf2/deprecated.rb:45:in `new'
        from D:/mikutter/mikutter/core/plugin/skin/model/image.rb:35:in `pixbuf'
        from D:/mikutter/mikutter/core/plugin/gtk/world_shifter.rb:114:in `add_face_widget_ifn'
        from D:/mikutter/mikutter/core/plugin/gtk/world_shifter.rb:79:in `put_face'
        from D:/mikutter/mikutter/core/plugin/gtk/world_shifter.rb:22:in `refresh'
        from D:/mikutter/mikutter/core/plugin/gtk/world_shifter.rb:15:in `block in initialize'
        from D:/mikutter/mikutter/core/mui/gtk_extension.rb:66:in `block in safety_signal_connect_atonce'
        from D:/mikutter/mikutter/core/mui/gtk_extension.rb:35:in `block in safety_signal_connect'
        from D:/mikutter/mikutter/core/plugin/gtk/gtk.rb:70:in `show_all'
        from D:/mikutter/mikutter/core/plugin/gtk/gtk.rb:70:in `block (2 levels) in <top (required)>'
        from D:/mikutter/mikutter/vendor/bundle/ruby/2.6.0/gems/pluggaloid-1.2.0/lib/pluggaloid/listener.rb:25:in `call'
        from D:/mikutter/mikutter/vendor/bundle/ruby/2.6.0/gems/pluggaloid-1.2.0/lib/pluggaloid/event.rb:116:in `block (2 levels) in call_all_listeners'
        from D:/mikutter/mikutter/vendor/bundle/ruby/2.6.0/gems/pluggaloid-1.2.0/lib/pluggaloid/event.rb:115:in `each'
        from D:/mikutter/mikutter/vendor/bundle/ruby/2.6.0/gems/pluggaloid-1.2.0/lib/pluggaloid/event.rb:115:in `block in call_all_listeners'
        from D:/mikutter/mikutter/vendor/bundle/ruby/2.6.0/gems/pluggaloid-1.2.0/lib/pluggaloid/event.rb:114:in `catch'
        from D:/mikutter/mikutter/vendor/bundle/ruby/2.6.0/gems/pluggaloid-1.2.0/lib/pluggaloid/event.rb:114:in `call_all_listeners'
        from D:/mikutter/mikutter/vendor/bundle/ruby/2.6.0/gems/pluggaloid-1.2.0/lib/pluggaloid/event.rb:52:in `block in call'
        from D:/mikutter/mikutter/vendor/bundle/ruby/2.6.0/gems/delayer-1.0.0/lib/delayer/procedure.rb:24:in `run'
        from D:/mikutter/mikutter/vendor/bundle/ruby/2.6.0/gems/delayer-1.0.0/lib/delayer/extend.rb:92:in `run_once'
        from D:/mikutter/mikutter/vendor/bundle/ruby/2.6.0/gems/delayer-1.0.0/lib/delayer/extend.rb:64:in `run'
        from D:/mikutter/mikutter/vendor/bundle/ruby/2.6.0/gems/delayer-1.0.0/lib/delayer.rb:36:in `method_missing'
        from D:/mikutter/mikutter/core/plugin/gtk/delayer.rb:10:in `block in boot'
        from D:/mikutter/mikutter/core/plugin/gtk/mainloop.rb:7:in `main'
        from D:/mikutter/mikutter/core/plugin/gtk/mainloop.rb:7:in `block in mainloop'
        from D:/mikutter/mikutter/core/plugin/gtk/mainloop.rb:6:in `loop'
        from D:/mikutter/mikutter/core/plugin/gtk/mainloop.rb:6:in `mainloop'
        from ./mikutter.rb:69:in `boot!'
        from ./mikutter.rb:105:in `<main>'
notice: {MIKUTTER_DIR}/core/serialthread.rb:47:in `force_exit!': all Serial Thread Group jobs canceled.
notice: ./mikutter.rb:81:in `boot!': raise mainloop exception `RuntimeError'
notice: ./mikutter.rb:86:in `error_handling!': catch RuntimeError
notice: {MIKUTTER_DIR}/core/configloader.rb:34:in `block in <module:ConfigLoader>': configloader: wrote 1 keys (Plugin::guide_guide_sequence)
Traceback (most recent call last):
        33: from ./mikutter.rb:105:in `<main>'
        32: from ./mikutter.rb:69:in `boot!'
        31: from D:/mikutter/mikutter/core/plugin/gtk/mainloop.rb:6:in `mainloop'
        30: from D:/mikutter/mikutter/core/plugin/gtk/mainloop.rb:6:in `loop'
        29: from D:/mikutter/mikutter/core/plugin/gtk/mainloop.rb:7:in `block in mainloop'
        28: from D:/mikutter/mikutter/core/plugin/gtk/mainloop.rb:7:in `main'
        27: from D:/mikutter/mikutter/core/plugin/gtk/delayer.rb:10:in `block in boot'
        26: from D:/mikutter/mikutter/vendor/bundle/ruby/2.6.0/gems/delayer-1.0.0/lib/delayer.rb:36:in `method_missing'
        25: from D:/mikutter/mikutter/vendor/bundle/ruby/2.6.0/gems/delayer-1.0.0/lib/delayer/extend.rb:64:in `run'
        24: from D:/mikutter/mikutter/vendor/bundle/ruby/2.6.0/gems/delayer-1.0.0/lib/delayer/extend.rb:92:in `run_once'
        23: from D:/mikutter/mikutter/vendor/bundle/ruby/2.6.0/gems/delayer-1.0.0/lib/delayer/procedure.rb:24:in `run'
        22: from D:/mikutter/mikutter/vendor/bundle/ruby/2.6.0/gems/pluggaloid-1.2.0/lib/pluggaloid/event.rb:52:in `block in call'
        21: from D:/mikutter/mikutter/vendor/bundle/ruby/2.6.0/gems/pluggaloid-1.2.0/lib/pluggaloid/event.rb:114:in `call_all_listeners'
        20: from D:/mikutter/mikutter/vendor/bundle/ruby/2.6.0/gems/pluggaloid-1.2.0/lib/pluggaloid/event.rb:114:in `catch'
        19: from D:/mikutter/mikutter/vendor/bundle/ruby/2.6.0/gems/pluggaloid-1.2.0/lib/pluggaloid/event.rb:115:in `block in call_all_listeners'
        18: from D:/mikutter/mikutter/vendor/bundle/ruby/2.6.0/gems/pluggaloid-1.2.0/lib/pluggaloid/event.rb:115:in `each'
        17: from D:/mikutter/mikutter/vendor/bundle/ruby/2.6.0/gems/pluggaloid-1.2.0/lib/pluggaloid/event.rb:116:in `block (2 levels) in call_all_listeners'
        16: from D:/mikutter/mikutter/vendor/bundle/ruby/2.6.0/gems/pluggaloid-1.2.0/lib/pluggaloid/listener.rb:25:in `call'
        15: from D:/mikutter/mikutter/core/plugin/gtk/gtk.rb:70:in `block (2 levels) in <top (required)>'
        14: from D:/mikutter/mikutter/core/plugin/gtk/gtk.rb:70:in `show_all'
        13: from D:/mikutter/mikutter/core/mui/gtk_extension.rb:35:in `block in safety_signal_connect'
        12: from D:/mikutter/mikutter/core/mui/gtk_extension.rb:66:in `block in safety_signal_connect_atonce'
        11: from D:/mikutter/mikutter/core/plugin/gtk/world_shifter.rb:15:in `block in initialize'
        10: from D:/mikutter/mikutter/core/plugin/gtk/world_shifter.rb:22:in `refresh'
         9: from D:/mikutter/mikutter/core/plugin/gtk/world_shifter.rb:79:in `put_face'
         8: from D:/mikutter/mikutter/core/plugin/gtk/world_shifter.rb:114:in `add_face_widget_ifn'
         7: from D:/mikutter/mikutter/core/plugin/skin/model/image.rb:35:in `pixbuf'
         6: from D:/mikutter/mikutter/vendor/bundle/ruby/2.6.0/gems/gdk_pixbuf2-3.3.7/lib/gdk_pixbuf2/deprecated.rb:45:in `new'
         5: from D:/mikutter/mikutter/vendor/bundle/ruby/2.6.0/gems/gdk_pixbuf2-3.3.7/lib/gdk_pixbuf2/deprecated.rb:45:in `new'
         4: from D:/mikutter/mikutter/vendor/bundle/ruby/2.6.0/gems/gdk_pixbuf2-3.3.7/lib/gdk_pixbuf2/pixbuf.rb:26:in `initialize'
         3: from D:/mikutter/mikutter/vendor/bundle/ruby/2.6.0/gems/gdk_pixbuf2-3.3.7/lib/gdk_pixbuf2/pixbuf.rb:113:in `initialize_with_hash'
         2: from D:/mikutter/mikutter/vendor/bundle/ruby/2.6.0/gems/gobject-introspection-3.3.7/lib/gobject-introspection/loader.rb:306:in `block (2 levels) in load_constructor_infos'
         1: from D:/mikutter/mikutter/vendor/bundle/ruby/2.6.0/gems/gobject-introspection-3.3.7/lib/gobject-introspection/loader.rb:616:in `invoke'
D:/mikutter/mikutter/vendor/bundle/ruby/2.6.0/gems/gobject-introspection-3.3.7/lib/gobject-introspection/loader.rb:616:in `invoke': failed to initialize (RuntimeError)