Uncaught TypeError: Cannot read property 'down' of undefined
Ext.define._clearSearchFilter @ ExplorerTree.js:1032
(anonymous function) @ ext-all-debug.js:6662
Ext.apply.callback @ ext-all-debug.js:8439
Ext.define.fireHandler @ ext-all-debug.js:130646
Ext.define.onClick @ ext-all-debug.js:130634
fire @ ext-all-debug.js:20223
Ext.define.fire @ ext-all-debug.js:32463
Ext.define.publish @ ext-all-debug.js:32439
Ext.define.doDelegatedEvent @ ext-all-debug.js:32489
Ext.define.onDelegatedEvent @ ext-all-debug.js:32476
(anonymous function) @ ext-all-debug.js:6662