ExtJS null 'id'

I have this code

Ext.create('Ext.panel.Panel', {
    width: '100%',
    autoScroll: true,
    height: '100%',
    renderTo: Ext.getBody(),
    title: 'IMAGES',
    items: Ext.create('Ext.view.View', {
        padding: 5,
        store: ImageStore,
        tpl: imageTpl
    })
});

and whenever I click in Panel it gives me an error (debugged in IE)

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Webpage error details

User Agent: Mozilla/4.0 etc...

Timestamp: Thu, 25 Aug 2011 21:15:22 UTC

Message: 'id' is null or not a开发者_如何学JAVAn object

Line: 7

Char: 183716

Code: 0

URI: /ext-4.0.1/ext-all.js

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and whenever I have a link like <a href="#" onClick="whateverFunction();">Run</a> it fails to run the function...

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What does the content of imageTpl look like? Try changing the config name from tpl to itemTpl.

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tpl should work ok, depending on what imageTpl looks like. From the code, this is the only thing that looks like it would bomb this.

Ext.panel.Panel height and width take a number, not a string ("100%"). You may also want to use Fit layout on the Panel.