Hi,

I had a problem with odoo 12 when installing any module, a blank page appeared then trying to open the debug with assets in administration user ( by add the end of URL ?debug=assets ) and the page is still empty but when I repeat try odoo server error (warning message ) appeared and contained these lines:

Error:

Uncaught TypeError: Cannot read property 'isReady' of undefined

httpxxxxxxxxx:8069/web/static/src/js/core/service_mixins.js:89

Traceback:

TypeError: Cannot read property 'isReady' of undefined

    at Class._call_service (httpxxxxxxxxx:8069/web/static/src/js/core/service_mixins.js:89:29)

    at Class.trigger (httpxxxxxxxxx:8069/web/static/src/js/core/mixins.js:225:31)

    at Class._trigger_up (httpxxxxxxxxx:8069/web/static/src/js/core/mixins.js:340:34)

    at Class._trigger_up (httpxxxxxxxxx:8069/web/static/src/js/core/mixins.js:342:20)

    at Class._trigger_up (httpxxxxxxxxx:8069/web/static/src/js/core/mixins.js:342:20)

    at Class._trigger_up (httpxxxxxxxxx:8069/web/static/src/js/core/mixins.js:342:20)

    at Class.trigger_up (httpxxxxxxxxx:8069/web/static/src/js/core/mixins.js:335:14)

    at Class.call (httpxxxxxxxxx:8069/web/static/src/js/core/service_mixins.js:116:14)

    at Class.willStart (httpxxxxxxxxx:8069/mail/static/src/js/systray/systray_messaging_menu.js:33:64)

    at Class.prototype.<computed> [as willStart] (httpxxxxxxxxx:8069/web/static/src/js/core/class.js:90:38)

,thanks