Sidebar menu toggle not working

[pptyasar]

jquery.js:9823 Uncaught TypeError: url.indexOf is not a function
    at jQuery.fn.init.jQuery.fn.load (jquery.js:9823)
    at app.js:156

jquery.js:3860 jQuery.Deferred exception: $(...).tree is not a function TypeError: $(...).tree is not a function

    at HTMLDocument.<anonymous> (http://localhost/annam/backend/web/assets/e9dbdd41/admin-lte/js/AdminLTE/app.js:96:29)
    at mightThrow (http://localhost/annam/backend/web/assets/c2e430bd/jquery.js:3583:29)
    at process (http://localhost/annam/backend/web/assets/c2e430bd/jquery.js:3651:12) undefined
jQuery.Deferred.exceptionHook @ jquery.js:3860
jquery.js:3869 Uncaught TypeError: $(...).tree is not a function
    at HTMLDocument.<anonymous> (app.js:96)
    at mightThrow (jquery.js:3583)
    at process (jquery.js:3651)
/favicon.ico Failed to load resource: the server responded with a status of 404 (Not Found)

[aagge]

Add 'data-widget' => 'tree' to the options in sidebar menu. It should now look like this:-

'options' => ['class' => 'sidebar-menu', 'data-widget' => 'tree'],

[gabriele-carbonai]

I have the same problem and data-widget is not have effect to me

[gabriele-carbonai]

I solved following this 139

[anish-adm]

Awesome! @aagge's solution worked for me!

[schmunk42]

Any objections adding above default options to the menu widget?