Output of compiling

error

arthur@arthur-dev:~/Downloads/dev/plugin-chat$ mkdir build
arthur@arthur-dev:~/Downloads/dev/plugin-chat$ cd build
arthur@arthur-dev:~/Downloads/dev/plugin-chat/build$ cmake .. -DCMAKE_INSTALL_PREFIX=/usr
-- The C compiler identification is GNU 4.8.1
-- The CXX compiler identification is GNU 4.8.1
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++
-- Check for working CXX compiler: /usr/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Found PkgConfig: /usr/bin/pkg-config (found version "0.26") 
-- checking for modules 'libmutter>=3.4;granite;clutter-1.0>=1.9.16;clutter-gtk-1.0;libbamf3;xfixes;gee-1.0;plank;gnome-desktop-3.0;mx-1.0;telepathy-glib'
--   found libmutter, version 3.8.4
--   found granite, version 0.2.2
--   found clutter-1.0, version 1.14.4
--   found clutter-gtk-1.0, version 1.4.4
--   found libbamf3, version 0.5.1
--   found xfixes, version 5.0.1
--   found gee-1.0, version 0.6.8
--   found plank, version 0.3.0.907
--   found gnome-desktop-3.0, version 3.8.4
--   found mx-1.0, version 1.4.7
--   found telepathy-glib, version 0.20.4
-- Found Vala: /usr/bin/valac  
-- checking for a minimum Vala version of 0.16.1
--   found Vala, version 0.16.1
-- Compiling plugin chat
-- GSettings schemas will be installed locally.
-- GSettings shemas will be compiled.
-- GSettings schemas will be installed into /usr/share/glib-2.0/schemas/
-- Configuring done
-- Generating done
-- Build files have been written to: /home/arthur/Downloads/dev/plugin-chat/build
arthur@arthur-dev:~/Downloads/dev/plugin-chat/build$ make
[  3%] Generating lib/Plugin.c, lib/Utils.c, lib/WindowManager.c, build/lib/Config.c, libgala.vapi, libgala.h, libgala_internal.h
/home/arthur/Downloads/dev/plugin-chat/lib/Utils.vala:119.13-121.5: warning: unreachable catch clause detected
Compilation succeeded - 1 warning(s)
Scanning dependencies of target libgala
[  6%] Building C object CMakeFiles/libgala.dir/lib/Plugin.c.o
[  9%] Building C object CMakeFiles/libgala.dir/lib/Utils.c.o
/home/arthur/Downloads/dev/plugin-chat/lib/Utils.vala: In function ‘gala_utils_clean_icon_cache’:
/home/arthur/Downloads/dev/plugin-chat/lib/Utils.vala:42:2: warning: passing argument 1 of ‘gee_abstract_map_get_keys’ from incompatible pointer type [enabled by default]
    var list = xid_pixbuf_cache.keys.to_array ();
  ^
In file included from /home/arthur/Downloads/dev/plugin-chat/build/lib/Utils.c:23:0:
/usr/include/gee-1.0/gee.h:792:9: note: expected ‘struct GeeAbstractMap *’ but argument is of type ‘struct GeeMap *’
 GeeSet* gee_abstract_map_get_keys (GeeAbstractMap* self);
         ^
/home/arthur/Downloads/dev/plugin-chat/lib/Utils.vala:42:9: warning: assignment from incompatible pointer type [enabled by default]
    var list = xid_pixbuf_cache.keys.to_array ();
         ^
/home/arthur/Downloads/dev/plugin-chat/lib/Utils.vala:43:2: warning: passing argument 1 of ‘gee_abstract_map_get_values’ from incompatible pointer type [enabled by default]
    var pixbuf_list = icon_pixbuf_cache.values.to_array ();
  ^
In file included from /home/arthur/Downloads/dev/plugin-chat/build/lib/Utils.c:23:0:
/usr/include/gee-1.0/gee.h:793:16: note: expected ‘struct GeeAbstractMap *’ but argument is of type ‘struct GeeMap *’
 GeeCollection* gee_abstract_map_get_values (GeeAbstractMap* self);
                ^
/home/arthur/Downloads/dev/plugin-chat/lib/Utils.vala:43:10: warning: assignment from incompatible pointer type [enabled by default]
    var pixbuf_list = icon_pixbuf_cache.values.to_array ();
          ^
/home/arthur/Downloads/dev/plugin-chat/lib/Utils.vala:44:2: warning: passing argument 1 of ‘gee_abstract_map_get_keys’ from incompatible pointer type [enabled by default]
    var icon_list = icon_pixbuf_cache.keys.to_array ();
  ^
In file included from /home/arthur/Downloads/dev/plugin-chat/build/lib/Utils.c:23:0:
/usr/include/gee-1.0/gee.h:792:9: note: expected ‘struct GeeAbstractMap *’ but argument is of type ‘struct GeeMap *’
 GeeSet* gee_abstract_map_get_keys (GeeAbstractMap* self);
         ^
/home/arthur/Downloads/dev/plugin-chat/lib/Utils.vala:44:10: warning: assignment from incompatible pointer type [enabled by default]
    var icon_list = icon_pixbuf_cache.keys.to_array ();
          ^
[ 12%] Building C object CMakeFiles/libgala.dir/lib/WindowManager.c.o
[ 15%] Building C object CMakeFiles/libgala.dir/build/lib/Config.c.o
Linking C shared library libgala.so
[ 15%] Built target libgala
[ 18%] Generating src/DBus.c, src/DragDropAction.c, src/Main.c, src/PluginManager.c, src/Settings.c, src/TextShadowEffect.c, src/InternalUtils.c, src/WindowManager.c, src/Zooming.c, src/Background/Animation.c, src/Background/Background.c, src/Background/BackgroundCache.c, src/Background/BackgroundManager.c, src/Background/SystemBackground.c, src/Widgets/AppIcon.c, src/Widgets/WindowOverview.c, src/Widgets/WindowSwitcher.c, src/Widgets/WindowThumb.c, src/Widgets/WorkspaceThumb.c, src/Widgets/WorkspaceView.c
/home/arthur/Downloads/dev/plugin-chat/src/Widgets/WindowSwitcher.vala:521.5-521.8: warning: Argument 2: Cannot pass null to non-null parameter type
				null, out modifiers);
				^^^^
/home/arthur/Downloads/dev/plugin-chat/src/Background/Animation.vala:41.3-41.14: warning: unhandled error `GLib.Error'
		show.load ();
		^^^^^^^^^^^^
/home/arthur/Downloads/dev/plugin-chat/src/Background/BackgroundCache.vala:74.17-74.49: error: Too few arguments, method `GLib.EqualFunc' does not take 1 arguments
            if (color.equal(pattern.get_color ()))
                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
/home/arthur/Downloads/dev/plugin-chat/src/Background/BackgroundCache.vala:78.18-78.64: error: Too few arguments, method `GLib.EqualFunc' does not take 1 arguments
                !second_color.equal(pattern.get_second_color ()))
                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
/home/arthur/Downloads/dev/plugin-chat/src/Background/BackgroundManager.vala:95.13-95.41: warning: Clutter.Actor.lower_bottom has been deprecated since 1.10
/home/arthur/Downloads/dev/plugin-chat/src/PluginManager.vala:20.21-20.82: warning: unhandled error `GLib.Error'
			var enumerator = plugin_dir.enumerate_children (FileAttribute.STANDARD_NAME, 0);
			                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
/home/arthur/Downloads/dev/plugin-chat/src/PluginManager.vala:22.19-22.41: warning: unhandled error `GLib.Error'
			while ((info = enumerator.next_file ()) != null) {
			               ^^^^^^^^^^^^^^^^^^^^^^^
Compilation failed: 2 error(s), 5 warning(s)
make[2]: *** [src/DBus.c] Error 1
make[1]: *** [CMakeFiles/gala.dir/all] Error 2
make: *** [all] Error 2