Buildroot Midori error

/home/vagrant/buildroot-2021.11/output/build/midori-0.5.11/midori/../katze/midori-uri.vala:294.41-294.59: warning: Access to possible `null'. Perform a check or use an unsafe cast.
                return other is Icon && (other as Icon).uri == uri;
                                        ^^^^^^^^^^^^^^^^^^^
[ 27%] Built target pofiles_61
[ 28%] Built target pofiles_63
/home/vagrant/buildroot-2021.11/output/build/midori-0.5.11/midori/../katze/midori-paths.vala:488.44-488.57: error: The name `STOCK_FILE' does not exist in the context of `Gtk' (gtk+-3.0)
                return widget.render_icon (Gtk.STOCK_FILE, Gtk.IconSize.MENU, null);
                                           ^^^^^^^^^^^^^^
[ 28%] Built target pofiles_64
/home/vagrant/buildroot-2021.11/output/build/midori-0.5.11/midori/midori-contextaction.vala:54.21-54.62: warning: Access to possible `null'. Perform a check or use an unsafe cast.
                    (action as ContextAction).add_action_group (action_group);
                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
/home/vagrant/buildroot-2021.11/output/build/midori-0.5.11/midori/midori-contextaction.vala:81.21-81.54: warning: Access to possible `null'. Perform a check or use an unsafe cast.
                 && (action as ContextAction).children.nth_data (0) != null) {
                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
/home/vagrant/buildroot-2021.11/output/build/midori-0.5.11/midori/midori-contextaction.vala:83.43-83.94: warning: Access to possible `null'. Perform a check or use an unsafe cast.
                    menuitem.set_submenu ((action as ContextAction).create_webkit_context_menu (null));
                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
/home/vagrant/buildroot-2021.11/output/build/midori-0.5.11/midori/midori-contextaction.vala:116.21-116.54: warning: Access to possible `null'. Perform a check or use an unsafe cast.
                 && (action as ContextAction).children.nth_data (0) != null) {
                    ^^^^^^^^^^^^^^^^^^^^^^^^^[ 28%] Built target pofiles_66
^^^^^^^^^
/home/vagrant/buildroot-2021.11/output/build/midori-0.5.11/midori/midori-contextaction.vala:118.40-118.76: warning: Access to possible `null'. Perform a check or use an unsafe cast.
                    menuitem.submenu = (action as ContextAction).create_menu (null, accels);
                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
/home/vagrant/buildroot-2021.11/output/build/midori-0.5.11/midori/midori-dialog.vala:140.21-140.60: warning: Access to possible `null'. Perform a check or use an unsafe cast.
                    (dialog as Gtk.FileChooser).set_filename (Test.test_filename);
                    ^^^^^^[ 28%] Built target pofiles_46
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[ 28%] Built target pofiles_71
[ 28%] Built target pofiles_67
[ 29%] Built target pofiles_7
/home/vagrant/buildroot-2021.11/output/build/midori-0.5.11/midori/midori-notebook.vala:263.28-263.48: warning: Access to possible `null'. Perform a check or use an unsafe cast.
                drag_tab = (widget as Tally).tab;
                           ^^^^^^^^^^^^^^^^^^^^^
/home/vagrant/buildroot-2021.11/output/build/midori-0.5.11/midori/midori-notebook.vala:330.25-330.39: error: Access to non-public constructor `Midori.Tally.new' denied
            var tally = new Tally (tab);
                        ^^^^^^^^^^^^^^^
/home/vagrant/buildroot-2021.11/output/build/midori-0.5.11/midori/midori-notebook.vala:396.82-396.96: error: The name `STOCK_CLOSE' does not exist in the context of `Gtk' (gtk+-3.0)
            var action_close = new Midori.ContextAction ("TabClose", null, null, Gtk.STOCK_CLOSE);
                                                                                 ^^^^^^^^^^^^^^^