Uncaught TypeError: Cannot read property 'mode' of undefined

I got this error when I used:(for a select all checkbox)

$("#Rules_r div input").toggle($("#Rules_r div input").prop("checked", true));

The code works. anyone seen it before?

Uncaught TypeError: Cannot read property 'mode' of undefined
at init.effect (jquery-ui.min.js:6)
at init.toggle (jquery-ui.min.js:7)
at checkallrules (categories.js:3238)
at HTMLInputElement.onclick (categories.html:1)
effect @ jquery-ui.min.js:6
(anonymous) @ jquery-ui.min.js:7
checkallrules @ categories.js:3238
onclick @ categories.html:1