Cannot set property 'tkPid' of undefined

Vaadin 6 / 7 / 8
1

Hi all,

Having successfully compiled my (first) own Vaadin widget, I get the following client side error:

Error handling type datacom.google.gwt.core.client.JavaScriptException: (TypeError) : Cannot set property 'tkPid' of undefined
   at Unknown.G7(Exceptions.java:36)
   at Unknown.tvb(ConnectorMap.java:140)
   at Unknown.qvb(ConnectorMap.java:132)
   at Unknown._rb(ApplicationConnection.java:3242)
   at Unknown.Vsb(ApplicationConnection.java:2068)
   at Unknown.Ysb(ApplicationConnection.java:1643)
   at Unknown.isb(ApplicationConnection.java:2623)
   at Unknown.jsb(ApplicationConnection.java:1445)
   at Unknown.gsb(ApplicationConnection.java:1070)
   at Unknown.Csb(ApplicationConnection.java:615)
   at Unknown.Arb(ApplicationConfiguration.java:453)
   at Unknown.Vi(SchedulerImpl.java:50)
   at Unknown.Ni(SchedulerImpl.java:347)
   at Unknown.Zi(SchedulerImpl.java:78)
   at Unknown.Ti(SchedulerImpl.java:141)
   at Unknown.qi(Impl.java:247)
   at Unknown.ti(Impl.java:299)
   at Unknown.anonymous(Impl.java:72)

Looking into

com.vaadin.client.ConnectorMap

 on line 140, I find it to be inside a native operation defined as:

private static native void setConnectorId(Element el, String id)
/*-{
        el.tkPid = id;
}-*/;

I also get an additional client side error:

com.google.gwt.core.client.JavaScriptException: (TypeError) : Cannot read property '__gwt_resolve' of undefined
   at Unknown.G7(Exceptions.java:36)
   at Unknown.Wbb(DOM.java:1075)
   at Unknown.Ijb(SimplePanel.java:158)
   at Unknown.TZc(Slot.java:125)
   at Unknown.WZc(Slot.java:101)
   at Unknown.xmc(VAbstractOrderedLayout.java:228)
   at Unknown.MYc(AbstractOrderedLayoutConnector.java:454)
   at Unknown.aZc(AbstractOrderedLayoutConnector.java:249)
   at Unknown.etb(ApplicationConnection.java:1840)
   at Unknown.Ysb(ApplicationConnection.java:1666)
   at Unknown.isb(ApplicationConnection.java:2623)
   at Unknown.jsb(ApplicationConnection.java:1445)
   at Unknown.gsb(ApplicationConnection.java:1070)
   at Unknown.Csb(ApplicationConnection.java:615)
   at Unknown.Arb(ApplicationConfiguration.java:453)
   at Unknown.Vi(SchedulerImpl.java:185)
   at Unknown.Ni(SchedulerImpl.java:347)
   at Unknown.Zi(SchedulerImpl.java:78)
   at Unknown.Ti(SchedulerImpl.java:141)
   at Unknown.qi(Impl.java:247)
   at Unknown.ti(Impl.java:299)
   at Unknown.anonymous(Impl.java:72)

Once again,

com.google.gwt.user.client.DOM

 on line 1075 is inside a native operation:

private static native Element resolve(Element maybePotential)
/*-{
        return maybePotential.__gwt_resolve ? maybePotential.__gwt_resolve() : maybePotential;
}-*/;

What am I to make of this?

2

Should probably add that I am using Vaadin v7.5.10 and have included lib-gwt-svg v0.5.10 in the mix.

Might this be part of the problem?

3

Looks like you are have ComponentConnector for which connector.getWidget().getElement() returns null. Run in superdevmode and you might find out why.