Tried to go get "github.com/conformal/gotk3/gtk" and got a trail of errors. What could be wrong?
# github.com/conformal/gotk3/gtk
37: error: 'gtk_popover_get_type' undeclared (first use in this function)
37: error: 'gtk_popover_new' undeclared (first use in this function)
37: error: 'gtk_popover_set_position' undeclared (first use in this function)
37: error: 'gtk_popover_get_position' undeclared (first use in this function)
37: error: 'gtk_popover_set_modal' undeclared (first use in this function)
38: error: 'gtk_popover_get_modal' undeclared (first use in this function)
38: error: 'gtk_widget_get_margin_end' undeclared (first use in this function)
38: error: 'GtkPopover' undeclared (first use in this function)
38: error: 'gtk_widget_set_margin_end' undeclared (first use in this function)
38: error: 'gtk_popover_set_relative_to' undeclared (first use in this function)
38: error: 'gtk_popover_get_relative_to' undeclared (first use in this function)
38: error: 'gtk_widget_get_margin_start' undeclared (first use in this function)
38: error: 'gtk_widget_set_margin_start' undeclared (first use in this function)
Tried to
go get "github.com/conformal/gotk3/gtk"
and got a trail of errors. What could be wrong?