Javascript error (related to canvasItem) in latest nightly

[deepfriedbrain]

Today I updated to SmartGWT LGPL 3.1d (09-13-2012 nightly). Previously my app had been using SmartGWT LGPL 3.1d (05-02-2012 nightly).

After the update, I started getting a javascript error in my application in Internet Explorer 8 Dev Mode. There's no error in the Compiled mode. I have not changed anything in my application.

The Javascript error is:

00:04:52.177 [ERROR] [pmproc] 00:04:52.176:TMR4:WARN:Log:Error:
    ''canvasItem' is null or not an object'
    in http://127.0.0.1:8888/pmproc/sc/modules/ISC_Core.js?ver=7
    at line 3434
    Canvas.$wc()
    GridRenderer.$29r(_1=>Obj{name:0_5}, _2=>6, _3=>1)
    GridRenderer.$29q(_1=>6, _2=>1)
    [c]Hover.$zj()
    [c]Class.fireCallback(_1=>Obj, _2=>undef, _3=>Array[0], _4=>[Class Hover], _5=>true) on [Class Timer]
    [c]Timer.$in(_1=>"$ir481")
    anonymous()
        "isc.Timer.$in('$ir481')"

com.smartgwt.client.core.JsObject$SGWT_WARN: 00:04:52.176:TMR4:WARN:Log:Error:
    ''canvasItem' is null or not an object'
    in http://127.0.0.1:8888/pmproc/sc/modules/ISC_Core.js?ver=7
    at line 3434
    Canvas.$wc()
    GridRenderer.$29r(_1=>Obj{name:0_5}, _2=>6, _3=>1)
    GridRenderer.$29q(_1=>6, _2=>1)
    [c]Hover.$zj()
    [c]Class.fireCallback(_1=>Obj, _2=>undef, _3=>Array[0], _4=>[Class Hover], _5=>true) on [Class Timer]
    [c]Timer.$in(_1=>"$ir481")
    anonymous()
        "isc.Timer.$in('$ir481')"
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:525)
    at com.google.gwt.dev.shell.MethodAdaptor.invoke(MethodAdaptor.java:105)
    at com.google.gwt.dev.shell.MethodDispatch.invoke(MethodDispatch.java:71)
    at com.google.gwt.dev.shell.OophmSessionHandler.invoke(OophmSessionHandler.java:172)
    at com.google.gwt.dev.shell.BrowserChannelServer.reactToMessages(BrowserChannelServer.java:292)
    at com.google.gwt.dev.shell.BrowserChannelServer.processConnection(BrowserChannelServer.java:546)
    at com.google.gwt.dev.shell.BrowserChannelServer.run(BrowserChannelServer.java:363)
    at java.lang.Thread.run(Thread.java:722)

I tried with 08-29-2012 nightly, and it had the same problem.

Is this something to do with my code or with SmartGWT libraries?

Any help will be appreciated. Thanks in advance.

[Isomorphic]

This stack trace doesn't make much sense, and given that it only happens in IE8 development mode, it's probably GWT, your IDE or your browser getting into a wedged state and not a real issue.