Cannot read properties of undefined (reading '0') : var sel = $(selected.args[0]);

[krunal2212]

umc.js:253 Uncaught TypeError: Cannot read properties of undefined (reading '0')
at HTMLDivElement. (umc.js:253:42)
at HTMLDivElement.dispatch (jquery.js:5430:49)
at elemData.handle (jquery.js:5234:47)
at Object.trigger (jquery.js:8719:28)
at jQuery.fn.init.triggerHandler (jquery.js:8803:37)
at $.jstree.core.trigger (jquery.jstree.js:960:26)
at $.jstree.core.select_node (jquery.jstree.js:3288:22)
at $.jstree.core.activate_node (jquery.jstree.js:3155:26)
at $.jstree.core. (jquery.jstree.js:777:26)
at HTMLDivElement.dispatch (jquery.js:5430:49)

[dfelton]

@krunal2212 this is an unmaintained project at this point (since 2018).