[Bug Report] v-treeview - Error when adding and removing a child

Versions and Environment

Vuetify: 1.3.9 Vue: 2.5.16 Browsers: Chrome 70.0.3538.102 OS: Windows 10

Steps to reproduce

1. Open node “Applications”
2. Add a new child by clicking the “Add to applications” button
3. Remove the node by clicking the “Remove from applications” button
4. Add a new child again
5. Check the console for the error

Expected Behavior

A new node should be added

Actual Behavior

The following error is thrown:

[Vue warn]: Error in created hook: "TypeError: Cannot set property 'vnode' of undefined"
found in
<VTreeviewNode>... (1 recursive calls)
       <VTreeview>
...
TypeError: Cannot set property 'vnode' of undefined
    at VueComponent.register
    at VueComponent.created
    at callHook
    at VueComponent.Vue._init
    at new VueComponent
    at createComponentInstanceForVnode
    at init
    at createComponent
    at createElm
    at addVnodes

Reproduction Link

https://codepen.io/anon/pen/OavdWd?editors=1011

Comment

I found a similar closed issue #5543.
Not sure if it is the same problem though.
The issue was closed but not solved anyway, so I don’t think it makes a difference.

[pbteja1998]

Anyone else facing the same problem, I solved this by adding item-key to the treeview. So, if you do not have item-key set as some unique value for each item, then add that.

[lyutian]

Anyone else facing the same problem, I solved this by adding item-key to the treeview. So, if you do not have item-key set as some unique value for each item, then add that.

Adding item-key doesn’t fix my situation. 😢 Still get this error when add new to a leaf node, even the vuex store already updated and item-key set to unique id.