[12.0] Backend error > Compilation failed

[gregory-moka]

Hello, I've got an issue on Odoo community 12.0

Error: Undefined variable: "$mk-appbar-background".
        on line 8555 of stdin
>>     background-color: $mk-appbar-background;
   ----------------------^
This error occured while compiling the bundle 'web.assets_backend' containing:
    - /web/static/lib/bootstrap/scss/_functions.scss
    - /web/static/lib/bootstrap/scss/_mixins.scss
    - /web/static/src/scss/utils.scss
    - /web/static/src/scss/bs_mixins_overrides.scss
    - /muk_web_theme/static/src/scss/mixins.scss
    - /web/static/src/scss/primary_variables.scss
    - /muk_web_theme/static/src/scss/colors.custom.muk_web_theme._assets_primary_variables.scss
    - /web_editor/static/src/scss/web_editor.variables.scss
    - /mail/static/src/scss/variables.scss
    - /portal/static/src/scss/primary_variables.scss
    - /website/static/src/scss/primary_variables.scss
    - /website/static/src/scss/options/colors/user_color_palette.scss
    - /website/static/src/scss/options/colors/user_theme_color_palette.scss
    - /web/static/src/scss/secondary_variables.scss
    - /website/static/src/scss/secondary_variables.scss
    - /account/static/src/scss/variables.scss
    - /web/static/src/scss/bootstrap_overridden.scss
    - /muk_web_theme/static/src/scss/variables.scss
    - /web_editor/static/src/scss/bootstrap_overridden.scss
    - /web/static/src/scss/import_bootstrap_part1.scss
    - /web/static/src/scss/bs_mixins_overrides.scss
    - /web/static/src/scss/import_bootstrap_part2.scss
    - /web/static/src/scss/bootstrap_review.scss
    - /web/static/src/scss/webclient_extra.scss
    - /web/static/src/scss/webclient_layout.scss
    - /web/static/src/scss/webclient.scss
    - /web/static/src/scss/domain_selector.scss
    - /web/static/src/scss/model_field_selector.scss
    - /web/static/src/scss/progress_bar.scss
    - /web/static/src/scss/dropdown.scss
    - /web/static/src/scss/dropdown_extra.scss
    - /web/static/src/scss/tooltip.scss
    - /web/static/src/scss/debug_manager.scss
    - /web/static/src/scss/control_panel.scss
    - /web/static/src/scss/fields.scss
    - /web/static/src/scss/fields_extra.scss
    - /web/static/src/scss/views.scss
    - /web/static/src/scss/pivot_view.scss
    - /web/static/src/scss/graph_view.scss
    - /web/static/src/scss/form_view.scss
    - /web/static/src/scss/form_view_extra.scss
    - /web/static/src/scss/list_view.scss
    - /web/static/src/scss/list_view_extra.scss
    - /web/static/src/scss/kanban_dashboard.scss
    - /web/static/src/scss/kanban_examples_dialog.scss
    - /web/static/src/scss/kanban_column_progressbar.scss
    - /web/static/src/scss/kanban_view.scss
    - /web/static/src/scss/kanban_view_mobile.scss
    - /web/static/src/scss/web_calendar.scss
    - /web/static/src/scss/search_view.scss
    - /web/static/src/scss/search_view_mobile.scss
    - /web/static/src/scss/dropdown_menu.scss
    - /web/static/src/scss/search_view_extra.scss
    - /web/static/src/scss/data_export.scss
    - /base/static/src/scss/onboarding.scss
    - /web/static/src/scss/base_settings.scss
    - /web/static/src/scss/report_backend.scss
    - /base_import/static/src/scss/base_import.scss
    - /web_diagram/static/src/scss/diagram_view.scss
    - /web_editor/static/src/scss/web_editor.common.scss
    - /web_editor/static/src/scss/web_editor.backend.scss
    - /muk_web_utils/static/src/scss/variables.scss
    - /muk_web_utils/static/src/scss/switch.scss
    - /muk_web_utils/static/src/scss/dropzone.scss
    - /muk_web_utils/static/src/scss/module.scss
    - /muk_web_utils/static/src/scss/color.scss
    - /muk_web_utils/static/src/scss/image.scss
    - /muk_web_utils/static/src/scss/copy.scss
    - /muk_web_utils/static/src/scss/share.scss
    - /muk_web_utils/static/src/scss/notification.scss
    - /muk_web_theme/static/libs/simplebar/simplebar.css
    - /muk_web_theme/static/src/scss/layout.scss
    - /muk_web_theme/static/src/scss/navbar.scss
    - /muk_web_theme/static/src/scss/apps.scss
    - /muk_web_theme/static/src/scss/appsbar.scss
    - /muk_web_theme/static/src/scss/control_panel.scss
    - /muk_web_theme/static/src/scss/list_view.scss
    - /muk_web_theme/static/src/scss/form_view.scss
    - /muk_web_theme/static/src/scss/fields.scss
    - /mail/static/src/scss/announcement.scss
    - /mail/static/src/scss/discuss.scss
    - /mail/static/src/scss/abstract_thread_window.scss
    - /mail/static/src/scss/thread_window.scss
    - /mail/static/src/scss/composer.scss
    - /mail/static/src/scss/chatter.scss
    - /mail/static/src/scss/followers.scss
    - /mail/static/src/scss/thread.scss
    - /mail/static/src/scss/systray.scss
    - /mail/static/src/scss/mail_activity.scss
    - /mail/static/src/scss/activity_view.scss
    - /mail/static/src/scss/kanban_view.scss
    - /mail/static/src/scss/attachment_box.scss
    - /website/static/src/scss/website.backend.scss
    - /website_theme_install/static/src/scss/website_theme_install.scss
    - /note/static/src/scss/note.scss
    - /project/static/src/scss/project_dashboard.scss
    - /hr/static/src/scss/hr.scss
    - /calendar/static/src/scss/calendar.scss
    - /sales_team/static/src/scss/sales_team_dashboard.scss
    - /account/static/src/scss/account_reconciliation.scss
    - /account/static/src/scss/account_journal_dashboard.scss
    - /account/static/src/scss/account_dashboard.scss
    - /account/static/src/scss/section_and_note_backend.scss
    - /payment/static/src/scss/payment_acquirer.scss
    - /google_calendar/static/src/scss/google_calendar.scss
    - /sale/static/src/scss/sale_onboarding.scss
    - /sale/static/src/scss/product_configurator.scss
    - /sale_timesheet/static/src/scss/sale_timesheet.scss
    - /stock/static/src/scss/stock_traceability_report.scss
    - /mass_mailing/static/src/scss/mass_mailing.scss
    - /web_settings_dashboard/static/src/scss/dashboard.scss

[keshrath]

Looks to me like one of the modules is not up to date.

[gregory-moka]

Yes, backend theme. But I had to uninstall/install it to make it work again. Problem solved

[digitalliuzg]

Temporary solution uninstall mail_enterprise