Uncaught TypeError: Cannot read property '_ariaRole' of null
Ext.define.doPlaceholderExpand @ ext-all-debug.js:136285
Ext.define.placeholderExpand @ ext-all-debug.js:136243
Ext.define.expand @ ext-all-debug.js:135264
Ext.define.toggleCollapse @ ext-all-debug.js:136529
fire @ ext-all-debug.js:19543
Ext.define.fire @ ext-all-debug.js:29588
Ext.define.publish @ ext-all-debug.js:29564
Ext.define.doDelegatedEvent @ ext-all-debug.js:29614
Ext.define.onDelegatedEvent @ ext-all-debug.js:29601
Ext.Function.ExtFunction.bind.method @ ext-all-debug.js:6317