title: Extjs 5 Uncaught TypeError: Cannot read property 'schema' of null
body: <p>I changed extjs 4.2.3 to 5.0.1 and i have this error.Any ideas?</p>
  
  <p>Uncaught TypeError: Cannot read property 'schema' of null</p>
  
  <p>Ext.define.extractDataext-all-debug.js:8144 Ext.Base.Base.addMembers.callParentext-all-debug.js:61852 Ext.define.extractDataext-all-debug.js:68174 Ext.define.onNodeInsertext-all-debug.js:68093 Ext.define.onNodeAppendext-all-debug.js:68329 Ext.define.updateRoot</p>