Hi,

after upgrading to 9.1.0 (from 7.4.2), and logged in as host, the admin menu is not shown and in console, I see a couple of errors:

MicrosoftAjax.js Failed to load resource: the server responded with a status of 404 (Not Found)

MicrosoftAjaxWebForms.js Failed to load resource: the server responded with a status of 404 (Not Found)

MicrosoftAjax.js Failed to load resource: the server responded with a status of 404 (Not Found)

MicrosoftAjaxWebForms.js Failed to load resource: the server responded with a status of 404 (Not Found)

js:2 Uncaught ReferenceError: Sys is not defined at js:2

(index):94
Uncaught ReferenceError: Sys is not defined
at (index):94

index.html:14
Uncaught TypeError: Cannot read property '_isInstanceOfType' of undefined

at index.html:14

main.js?cdv=323:51
TypeError: Cannot read property 'MenuItems' of undefined

at Object.buildMenuViewModel (util.js?cdv=323:341)

at main.js?cdv=323:100

at Object.execCb (require.js?cdv=323:1650)

at Module.check (require.js?cdv=323:861)

at Module.<anonymous> (require.js?cdv=323:1113)

at require.js?cdv=323:132

at require.js?cdv=323:1156

at each (require.js?cdv=323:57)

at Module.emit (require.js?cdv=323:1155)

at Module.check (require.js?cdv=323:917)

requirejs.onError @ main.js?cdv=323:51

main.js?cdv=323:52

Uncaught TypeError: Cannot read property 'MenuItems' of undefined

at Object.buildMenuViewModel (util.js?cdv=323:341)

at main.js?cdv=323:100

at Object.execCb (require.js?cdv=323:1650)

at Module.check (require.js?cdv=323:861)

at Module.<anonymous> (require.js?cdv=323:1113)

at require.js?cdv=323:132

at require.js?cdv=323:1156

at each (require.js?cdv=323:57)

at Module.emit (require.js?cdv=323:1155)

at Module.check (require.js?cdv=323:917)

Are there some additional steps required after upgrading to get this update working or are there breaking changes, which requires other replacements?

The upgrade to version 9.0 succeded and the admin menu can be accessed via navigation through the site /admin

I´m thankful for every help.

Best regards & thanks in advance.

Alexander Kommer