title: Error while updating Extjs 5.0.1 to 6.2.1 (com.sencha.exceptions.ExParse: Failed processing references for myApp/app/controller/Main.js
body: <p>I am getting error while updating Extjs 5.0.1 to 6.2.1 , i update my existing project to 6.2.1 but i am getting error </p>
  
  <p>(com.sencha.exceptions.ExParse: Failed processing references for myApp/app/controller/Main.js</p>
  
  <pre><code>[ERR] 
  [ERR] BUILD FAILED
  [ERR] com.sencha.exceptions.ExParse: Failed processing references for /MyApp/app/controller/Main.js
  [ERR]   at com.sencha.tools.compiler.sources.Insta
  [ERR] nceConfigReferenceProcessor.processInstanceConfig(InstanceConfigReferenceProcessor.java:155)
  [ERR] 
  [ERR] Total time: 19 seconds
  [ERR] The following error occurred while executing this line:
  /MyApp/.sencha/app/build-impl.xml:380: The following error occurred while executing this line:
  /MyApp/.sencha/app/init-impl.xml:384: com.sencha.exceptions.ExParse: Failed processing references for /MyApp/app/controller/Main.js
  </code></pre>
  
  <p>i am using CMD 6.2.1.29 </p>
  
  <p>can any one help me on this please</p>
  
  <p>Main.js is here <a href="https://jsfiddle.net/akhilgopinath/bnvf39ck/" rel="nofollow noreferrer">https://jsfiddle.net/akhilgopinath/bnvf39ck/</a></p>