Errors in Polymer 2

[ghost]

Using the simplest example possible,

        <vaadin-grid items='[{"name": "John", "surname": "Lennon", "role": "singer"}, {"name": "Ringo", "surname": "Starr", "role": "drums"}]'>
            <vaadin-grid-column>
                <template class="header">Name</template>
                <template>[[item.name]]</template>
            </vaadin-grid-column>
            <vaadin-grid-column>
                <template class="header">Surname</template>
                <template>[[item.surname]]</template>
            </vaadin-grid-column>
            <vaadin-grid-column>
                <template class="header">Role</template>
                <template>[[item.role]]</template>
            </vaadin-grid-column>
        </vaadin-grid>

in a Polymer 2 application, I get the following errors:

vaadin-grid-column.html:114 Uncaught TypeError: Polymer.dom(...).querySelectorAll(...).filter is not a function
    at HTMLElement._selectFirstTemplate (vaadin-grid-column.html:114)

Uncaught TypeError: Cannot read property 'forEach' of undefined
    at HTMLElement._hasTemplatesChanged (vaadin-grid-table.html:498)

Three times and two times, respectevly...
Andrea

[Saulis]

@andreabioli please state which version of Polymer and <vaadin-grid> you are using.

[adviner]

I can confirm this also. I updated to the latest Polymer
"polymer": "Polymer/polymer#^2.0.0",
and vaading-grid
"vaadin-grid": "^2.0.2",

No I get the error:

vaadin-grid-column.html:114 Uncaught TypeError: Polymer.dom(...).querySelectorAll(...).filter is not a function
at HTMLElement._selectFirstTemplate (vaadin-grid-column.html:114)
at HTMLElement._findTemplate (vaadin-grid-column.html:120)
at HTMLElement.value (vaadin-grid-column.html:190)
at HTMLElement._initializeProperties (element-mixin.html:606)
at HTMLElement._initializeProperties (legacy-element-mixin.html:130)
at HTMLElement.PropertyAccessors (property-accessors.html:120)
at TemplateStamp (template-stamp.html:119)
at PropertyEffects (property-effects.html:1075)
at PolymerElement (element-mixin.html:459)
at GestureEventListeners (gesture-event-listeners.html:40)

[Saulis]

Ok, <vaadin-grid> versions 2.x are for Polymer 1.x, please use v3.0.0-alpha1 (and later) for Polymer 2.x support.

[adviner]

Perfect. Thank you for the quick response 👍

[samiheikki]

Closing. Please re-open if updating to v3.0.0-alpha1 did not help.