(Solved) Admob plugin: Failed to re-package resources.

Hi there, I've encountered a problem when trying to use the google admob plugin for my unity3d project. The issue is that it fails to compile after I imported it and I have no idea why this happens. I've researched on countless other issues that are similar to mine but nothing so far fixed it for me. Does anyone know how to fix this exact issue?

Trying to compile I get this message: Failed to re-package resources. See the console for details

So I open the console to check and there's this error:

 CommandInvokationFailure: Failed to re-package resources. See the Console for details.
 D:\Android\sdk\build-tools\23.0.2\aapt.exe package --auto-add-overlay -v -f -m -J gen -M AndroidManifest.xml -S "res" -I "D:/Android/sdk\platforms\android-21\android.jar" -F bin/resources.ap_ --extra-packages android.support.v7.appcompat:com.google.android.gms:com.google.unity:com.google.android.gms.ads:com.google.android.gms:android.support.v4 -S "C:\Users\Public\Documents\Unity Projects\Admobtest_New\Temp\StagingArea\android-libraries\appcompat-v7-23.1.1\res" -S "C:\Users\Public\Documents\Unity Projects\Admobtest_New\Temp\StagingArea\android-libraries\google-play-services_lib\res" -S "C:\Users\Public\Documents\Unity Projects\Admobtest_New\Temp\StagingArea\android-libraries\GoogleMobileAdsPlugin\res" -S "C:\Users\Public\Documents\Unity Projects\Admobtest_New\Temp\StagingArea\android-libraries\play-services-ads-8.4.0\res" -S "C:\Users\Public\Documents\Unity Projects\Admobtest_New\Temp\StagingArea\android-libraries\play-services-basement-8.4.0\res" -S "C:\Users\Public\Documents\Unity Projects\Admobtest_New\Temp\StagingArea\android-libraries\support-v4-23.1.1\res"
 
 stderr[
 C:\Users\Public\Documents\Unity Projects\Admobtest_New\Temp\StagingArea\android-libraries\google-play-services_lib\res\values\admob_ads_attrs.xml:10: error: Attribute "adSize" has already been defined
 
 C:\Users\Public\Documents\Unity Projects\Admobtest_New\Temp\StagingArea\android-libraries\google-play-services_lib\res\values\admob_ads_attrs.xml:17: error: Attribute "adSizes" has already been defined
 
 C:\Users\Public\Documents\Unity Projects\Admobtest_New\Temp\StagingArea\android-libraries\google-play-services_lib\res\values\admob_ads_attrs.xml:20: error: Attribute "adUnitId" has already been defined
 
 C:\Users\Public\Documents\Unity Projects\Admobtest_New\Temp\StagingArea\android-libraries\google-play-services_lib\res\values\common_attrs.xml:13: error: Attribute "imageAspectRatioAdjust" has already been defined
 
 C:\Users\Public\Documents\Unity Projects\Admobtest_New\Temp\StagingArea\android-libraries\google-play-services_lib\res\values\common_attrs.xml:22: error: Attribute "imageAspectRatio" has already been defined
 
 C:\Users\Public\Documents\Unity Projects\Admobtest_New\Temp\StagingArea\android-libraries\google-play-services_lib\res\values\common_attrs.xml:27: error: Attribute "circleCrop" has already been defined
 
 C:\Users\Public\Documents\Unity Projects\Admobtest_New\Temp\StagingArea\android-libraries\appcompat-v7-23.1.1\res\values-v23\values-v23.xml:5: error: Error retrieving parent for item: No resource found that matches the given name 'android:TextAppearance.Material.Widget.Button.Inverse'.
 
 C:\Users\Public\Documents\Unity Projects\Admobtest_New\Temp\StagingArea\android-libraries\appcompat-v7-23.1.1\res\values-v23\values-v23.xml:30: error: Error retrieving parent for item: No resource found that matches the given name 'android:Widget.Material.Button.Colored'.
 
 ]
 stdout[
 Configurations:
  (default)
 
 Files:
   AndroidManifest.xml
     Src: () AndroidManifest.xml
 
 Resource Dirs:
 Including resources from package: D:\Android\sdk\platforms\android-21\android.jar
 applyFileOverlay for drawable
 trying overlaySet Key=cast_ic_notification_0.png
 trying overlaySet Key=cast_ic_notification_1.png
 trying overlaySet Key=cast_ic_notification_2.png
 trying overlaySet Key=cast_ic_notification_connecting.xml
 trying overlaySet Key=cast_ic_notification_on.png
 trying overlaySet Key=common_full_open_on_phone.png
 trying overlaySet Key=common_google_signin_btn_icon_dark.xml
 trying overlaySet Key=common_google_signin_btn_icon_dark_disabled.9.png
 trying overlaySet Key=common_google_signin_btn_icon_dark_focused.9.png
 trying overlaySet Key=common_google_signin_btn_icon_dark_normal.9.png
 trying overlaySet Key=common_google_signin_btn_icon_dark_pressed.9.png
 trying overlaySet Key=common_google_signin_btn_icon_light.xml
 trying overlaySet Key=common_google_signin_btn_icon_light_disabled.9.png
 trying overlaySet Key=common_google_signin_btn_icon_light_focused.9.png
 trying overlaySet Key=common_google_signin_btn_icon_light_normal.9.png
 trying overlaySet Key=common_google_signin_btn_icon_light_pressed.9.png
 trying overlaySet Key=common_google_signin_btn_text_dark.xml
 trying overlaySet Key=common_google_signin_btn_text_dark_disabled.9.png
 trying overlaySet Key=common_google_signin_btn_text_dark_focused.9.png
 trying overlaySet Key=common_google_signin_btn_text_dark_normal.9.png
 trying overlaySet Key=common_google_signin_btn_text_dark_pressed.9.png
 trying overlaySet Key=common_google_signin_btn_text_light.xml
 trying overlaySet Key=common_google_signin_btn_text_light_disabled.9.png
 trying overlaySet Key=common_google_signin_btn_text_light_focused.9.png
 trying overlaySet Key=common_google_signin_btn_text_light_normal.9.png
 trying overlaySet Key=common_google_signin_btn_text_light_pressed.9.png
 trying overlaySet Key=common_ic_googleplayservices.png
 trying overlaySet Key=common_plus_signin_btn_icon_dark.xml
 trying overlaySet Key=common_plus_signin_btn_icon_dark_disabled.9.png
 trying overlaySet Key=common_plus_signin_btn_icon_dark_focused.9.png
 trying overlaySet Key=common_plus_signin_btn_icon_dark_normal.9.png
 trying overlaySet Key=common_plus_signin_btn_icon_dark_pressed.9.png
 trying overlaySet Key=common_plus_signin_btn_icon_light.xml
 trying overlaySet Key=common_plus_signin_btn_icon_light_disabled.9.png
 trying overlaySet Key=common_plus_signin_btn_icon_light_focused.9.png
 trying overlaySet Key=common_plus_signin_btn_icon_light_normal.9.png
 trying overlaySet Key=common_plus_signin_btn_icon_light_pressed.9.png
 trying overlaySet Key=common_plus_signin_btn_text_dark.xml
 trying overlaySet Key=common_plus_signin_btn_text_dark_disabled.9.png
 trying overlaySet Key=common_plus_signin_btn_text_dark_focused.9.png
 trying overlaySet Key=common_plus_signin_btn_text_dark_normal.9.png
 trying overlaySet Key=common_plus_signin_btn_text_dark_pressed.9.png
 trying overlaySet Key=common_plus_signin_btn_text_light.xml
 trying overlaySet Key=common_plus_signin_btn_text_light_disabled.9.png
 trying overlaySet Key=common_plus_signin_btn_text_light_focused.9.png
 trying overlaySet Key=common_plus_signin_btn_text_light_normal.9.png
 trying overlaySet Key=common_plus_signin_btn_text_light_pressed.9.png
 trying overlaySet Key=ic_plusone_medium_off_client.png
 trying overlaySet Key=ic_plusone_small_off_client.png
 trying overlaySet Key=ic_plusone_standard_off_client.png
 trying overlaySet Key=ic_plusone_tall_off_client.png
 trying overlaySet Key=places_ic_clear.png
 trying overlaySet Key=places_ic_search.png
 trying overlaySet Key=powered_by_google_dark.png
 trying overlaySet Key=powered_by_google_light.png
 trying overlaySet Key=abc_ab_share_pack_mtrl_alpha.9.png
 trying overlaySet Key=abc_action_bar_item_background_material.xml
 trying overlaySet Key=abc_btn_borderless_material.xml
 trying overlaySet Key=abc_btn_check_material.xml
 trying overlaySet Key=abc_btn_check_to_on_mtrl_000.png
 trying overlaySet Key=abc_btn_check_to_on_mtrl_015.png
 trying overlaySet Key=abc_btn_colored_material.xml
 trying overlaySet Key=abc_btn_default_mtrl_shape.xml
 trying overlaySet Key=abc_btn_radio_material.xml
 trying overlaySet Key=abc_btn_radio_to_on_mtrl_000.png
 trying overlaySet Key=abc_btn_radio_to_on_mtrl_015.png
 trying overlaySet Key=abc_btn_rating_star_off_mtrl_alpha.png
 trying overlaySet Key=abc_btn_rating_star_on_mtrl_alpha.png
 trying overlaySet Key=abc_btn_switch_to_on_mtrl_00001.9.png
 trying overlaySet Key=abc_btn_switch_to_on_mtrl_00012.9.png
 trying overlaySet Key=abc_cab_background_internal_bg.xml
 trying overlaySet Key=abc_cab_background_top_material.xml
 trying overlaySet Key=abc_cab_background_top_mtrl_alpha.9.png
 trying overlaySet Key=abc_control_background_material.xml
 trying overlaySet Key=abc_dialog_material_background_dark.xml
 trying overlaySet Key=abc_dialog_material_background_light.xml
 trying overlaySet Key=abc_edit_text_material.xml
 trying overlaySet Key=abc_ic_ab_back_mtrl_am_alpha.png
 trying overlaySet Key=abc_ic_clear_mtrl_alpha.png
 trying overlaySet Key=abc_ic_commit_search_api_mtrl_alpha.png
 trying overlaySet Key=abc_ic_go_search_api_mtrl_alpha.png
 trying overlaySet Key=abc_ic_menu_copy_mtrl_am_alpha.png
 trying overlaySet Key=abc_ic_menu_cut_mtrl_alpha.png
 trying overlaySet Key=abc_ic_menu_moreoverflow_mtrl_alpha.png
 trying overlaySet Key=abc_ic_menu_paste_mtrl_am_alpha.png
 trying overlaySet Key=abc_ic_menu_selectall_mtrl_alpha.png
 trying overlaySet Key=abc_ic_menu_share_mtrl_alpha.png
 trying overlaySet Key=abc_ic_search_api_mtrl_alpha.png
 trying overlaySet Key=abc_ic_voice_search_api_mtrl_alpha.png
 trying overlaySet Key=abc_item_background_holo_dark.xml
 trying overlaySet Key=abc_item_background_holo_light.xml
 trying overlaySet Key=abc_list_divider_mtrl_alpha.9.png
 trying overlaySet Key=abc_list_focused_holo.9.png
 trying overlaySet Key=abc_list_longpressed_holo.9.png
 trying overlaySet Key=abc_list_pressed_holo_dark.9.png
 trying overlaySet Key=abc_list_pressed_holo_light.9.png
 trying overlaySet Key=abc_list_selector_background_transition_holo_dark.xml
 trying overlaySet Key=abc_list_selector_background_transition_holo_light.xml
 trying overlaySet Key=abc_list_selector_disabled_holo_dark.9.png
 trying overlaySet Key=abc_list_selector_disabled_holo_light.9.png
 trying overlaySet Key=abc_list_selector_holo_dark.xml
 trying overlaySet Key=abc_list_selector_holo_light.xml
 trying overlaySet Key=abc_menu_hardkey_panel_mtrl_mult.9.png
 trying overlaySet Key=abc_popup_background_mtrl_mult.9.png
 trying overlaySet Key=abc_ratingbar_full_material.xml
 trying overlaySet Key=abc_scrubber_control_off_mtrl_alpha.png
 trying overlaySet Key=abc_scrubber_control_to_pressed_mtrl_000.png
 trying overlaySet Key=abc_scrubber_control_to_pressed_mtrl_005.png
 trying overlaySet Key=abc_scrubber_primary_mtrl_alpha.9.png
 trying overlaySet Key=abc_scrubber_track_mtrl_alpha.9.png
 trying overlaySet Key=abc_seekbar_thumb_material.xml
 trying overlaySet Key=abc_seekbar_track_material.xml
 trying overlaySet Key=abc_spinner_mtrl_am_alpha.9.png
 trying overlaySet Key=abc_spinner_textfield_background_material.xml
 trying overlaySet Key=abc_switch_thumb_material.xml
 trying overlaySet Key=abc_switch_track_mtrl_alpha.9.png
 trying overlaySet Key=abc_tab_indicator_material.xml
 trying overlaySet Key=abc_tab_indicator_mtrl_alpha.9.png
 trying overlaySet Key=abc_text_cursor_material.xml
 trying overlaySet Key=abc_textfield_activated_mtrl_alpha.9.png
 trying overlaySet Key=abc_textfield_default_mtrl_alpha.9.png
 trying overlaySet Key=abc_textfield_search_activated_mtrl_alpha.9.png
 trying overlaySet Key=abc_textfield_search_default_mtrl_alpha.9.png
 trying overlaySet Key=abc_textfield_search_material.xml
 trying overlaySet Key=app_banner.png
 trying overlaySet Key=app_icon.png
 applyFileOverlay for layout
 trying overlaySet Key=place_autocomplete_fragment.xml
 trying overlaySet Key=place_autocomplete_item_powered_by_google.xml
 trying overlaySet Key=place_autocomplete_item_prediction.xml
 trying overlaySet Key=place_autocomplete_progress.xml
 trying overlaySet Key=abc_action_bar_title_item.xml
 trying overlaySet Key=abc_action_bar_up_container.xml
 trying overlaySet Key=abc_action_bar_view_list_nav_layout.xml
 trying overlaySet Key=abc_action_menu_item_layout.xml
 trying overlaySet Key=abc_action_menu_layout.xml
 trying overlaySet Key=abc_action_mode_bar.xml
 trying overlaySet Key=abc_action_mode_close_item_material.xml
 trying overlaySet Key=abc_activity_chooser_view.xml
 trying overlaySet Key=abc_activity_chooser_view_list_item.xml
 trying overlaySet Key=abc_alert_dialog_button_bar_material.xml
 trying overlaySet Key=abc_alert_dialog_material.xml
 trying overlaySet Key=abc_dialog_title_material.xml
 trying overlaySet Key=abc_expanded_menu_layout.xml
 trying overlaySet Key=abc_list_menu_item_checkbox.xml
 trying overlaySet Key=abc_list_menu_item_icon.xml
 trying overlaySet Key=abc_list_menu_item_layout.xml
 trying overlaySet Key=abc_list_menu_item_radio.xml
 trying overlaySet Key=abc_popup_menu_item_layout.xml
 trying overlaySet Key=abc_screen_content_include.xml
 trying overlaySet Key=abc_screen_simple.xml
 trying overlaySet Key=abc_screen_simple_overlay_action_mode.xml
 trying overlaySet Key=abc_screen_toolbar.xml
 trying overlaySet Key=abc_search_dropdown_item_icons_2line.xml
 trying overlaySet Key=abc_search_view.xml
 trying overlaySet Key=abc_select_dialog_material.xml
 trying overlaySet Key=notification_media_action.xml
 trying overlaySet Key=notification_media_cancel_action.xml
 trying overlaySet Key=notification_template_big_media.xml
 trying overlaySet Key=notification_template_big_media_narrow.xml
 trying overlaySet Key=notification_template_lines.xml
 trying overlaySet Key=notification_template_media.xml
 trying overlaySet Key=notification_template_part_chronometer.xml
 trying overlaySet Key=notification_template_part_time.xml
 trying overlaySet Key=select_dialog_item_material.xml
 trying overlaySet Key=select_dialog_multichoice_material.xml
 trying overlaySet Key=select_dialog_singlechoice_material.xml
 trying overlaySet Key=support_simple_spinner_dropdown_item.xml
 applyFileOverlay for anim
 trying overlaySet Key=abc_fade_in.xml
 trying overlaySet Key=abc_fade_out.xml
 trying overlaySet Key=abc_grow_fade_in_from_bottom.xml
 trying overlaySet Key=abc_popup_enter.xml
 trying overlaySet Key=abc_popup_exit.xml
 trying overlaySet Key=abc_shrink_fade_out_from_bottom.xml
 trying overlaySet Key=abc_slide_in_bottom.xml
 trying overlaySet Key=abc_slide_in_top.xml
 trying overlaySet Key=abc_slide_out_bottom.xml
 trying overlaySet Key=abc_slide_out_top.xml
 applyFileOverlay for animator
 applyFileOverlay for interpolator
 applyFileOverlay for transition
 applyFileOverlay for xml
 applyFileOverlay for raw
 trying overlaySet Key=gtm_analytics
 applyFileOverlay for color
 trying overlaySet Key=common_google_signin_btn_text_dark.xml
 trying overlaySet Key=common_google_signin_btn_text_light.xml
 trying overlaySet Key=common_plus_signin_btn_text_dark.xml
 trying overlaySet Key=common_plus_signin_btn_text_light.xml
 trying overlaySet Key=wallet_primary_text_holo_light.xml
 trying overlaySet Key=wallet_secondary_text_holo_dark.xml
 trying overlaySet Key=abc_background_cache_hint_selector_material_dark.xml
 trying overlaySet Key=abc_background_cache_hint_selector_material_light.xml
 trying overlaySet Key=abc_color_highlight_material.xml
 trying overlaySet Key=abc_primary_text_disable_only_material_dark.xml
 trying overlaySet Key=abc_primary_text_disable_only_material_light.xml
 trying overlaySet Key=abc_primary_text_material_dark.xml
 trying overlaySet Key=abc_primary_text_material_light.xml
 trying overlaySet Key=abc_search_url_text.xml
 trying overlaySet Key=abc_secondary_text_material_dark.xml
 trying overlaySet Key=abc_secondary_text_material_light.xml
 trying overlaySet Key=switch_thumb_material_dark.xml
 trying overlaySet Key=switch_thumb_material_light.xml
 applyFileOverlay for menu
 applyFileOverlay for mipmap
 Processing image: C:\Users\Public\Documents\Unity Projects\Admobtest_New\Temp\StagingArea\android-libraries\appcompat-v7-23.1.1\res\drawable-mdpi\abc_ab_share_pack_mtrl_alpha.9.png
 Processing image: C:\Users\Public\Documents\Unity Projects\Admobtest_New\Temp\StagingArea\android-libraries\appcompat-v7-23.1.1\res\drawable-hdpi\abc_ab_share_pack_mtrl_alpha.9.png
 Processing image: C:\Users\Public\Documents\Unity Projects\Admobtest_New\Temp\StagingArea\android-libraries\appcompat-v7-23.1.1\res\drawable-xhdpi\abc_ab_share_pack_mtrl_alpha.9.png
 Processing image: C:\Users\Public\Documents\Unity Projects\Admobtest_New\Temp\StagingArea\android-libraries\appcompat-v7-23.1.1\res\drawable-xxhdpi\abc_ab_share_pack_mtrl_alpha.9.png
     (processed image C:\Users\Public\Documents\Unity Projects\Admobtest_New\Temp\StagingArea\android-libraries\appcompat-v7-23.1.1\res\drawable-mdpi\abc_ab_share_pack_mtrl_alpha.9.png: 253% size of source)
     (processed image C:\Users\Public\Documents\Unity Projects\Admobtest_New\Temp\StagingArea\android-libraries\appcompat-v7-23.1.1\res\drawable-hdpi\abc_ab_share_pack_mtrl_alpha.9.png: 256% size of source)
     (processed image C:\Users\Public\Documents\Unity Projects\Admobtest_New\Temp\StagingArea\android-libraries\appcompat-v7-23.1.1\res\drawable-xhdpi\abc_ab_share_pack_mtrl_alpha.9.png: 253% size of source)
 Processing image: C:\User<message truncated>