CMD Build Error while converting to ExtJS 5

Hi ,

I am converting an Ext 4.2.2 project to Ext 5 and when I issue "sencha app refresh" command I am getting following error. There is no specific message to identify where the exact issue is located. How can I trace this error.

CMD Version:5.0.2.271

Please help me

Code:

[ERR]  
[ERR] BUILD FAILED 
[ERR] com.sencha.exceptions.BasicException 
[ERR] at java.l 
[ERR] ang.reflect.Method.invoke(Unknown Source) 
[ERR] at com.sencha.tools.compiler.sources.InstanceConfigReferenceProcessor.processInstanceConfig(InstanceConfigRefer 
[ERR] enceProcessor.java:155) 
[ERR] at com.sencha.tools.compiler.sources.ReferenceVisitor.processObjectAutoDependencies(ReferenceVisitor.java:33 
[ERR] 6) 
[ERR] at com.sencha.tools.compiler.sources.InstanceConfigReferenceProcessor.processInstanceConfigForClass(InstanceConfigReferenceProcess 
[ERR] or.java:190) 
[ERR] at com.sencha.tools.compiler.sources.Instan 
[ERR] ceConfigReferenceProcessor.processInstanceConfigForClass(InstanceConfigReferenceProcessor.java:190) 
[ERR] at com.sencha.tools.compiler.sources.InstanceConfigReferenceProcessor.processInstanceCon 
[ERR] figForClass(InstanceConfigReferenceProcessor.java:190) 
[ERR] at com.sencha.tools.compiler.sources.R 
[ERR] eferenceVisitor.visit(ReferenceVisitor.java:18) 
[ERR] at com.sencha.tools.compiler.sources.ReferenceVisitor.processObjectAutoD 
[ERR] ependencies(ReferenceVisitor.java:326) 
[ERR] at 
[ERR] com.sencha.tools.compiler.ast.AstTranslator$1$20.visit(AstTranslator.java:147) 
[ERR] at com.sencha.tools.compiler.sourc 
[ERR] es.InstanceConfigReferenceProcessor.processInstanceConfig(InstanceConfigReferenceProcessor.java:155) 
[ERR] at com.sencha.tools.compiler.sources.InstanceConfigReferenceProcessor.processInstanceConfigForClass(InstanceConfigReferenceProcessor.java:19 
[ERR] 0) 
[ERR] at com.sencha.tools.compiler.sources.InstanceConfigRe 
[ERR] ferenceProcessor.processInstanceConfigForClass(InstanceConfigReferenceProcessor.java:190) 
[ERR] at com.sencha.tools.compiler.sources.InstanceConfigReferenceProcessor.processInstanceConfigForClas 
[ERR] s(InstanceConfigReferenceProcessor.java:190) 
[ERR] at org.mozilla.javascript.ast.FunctionNode.visi 
[ERR] t(FunctionNode.java:421) 
[ERR] at co 
[ERR] m.sencha.tools.compiler.ast.AstTranslator$1$12.visit(AstTranslator.java:99) 
[ERR]  
[ERR] Total time: 34 minutes 35 seconds 
[ERR] Error during rebuild : The following error occurred while executing this line: 

C:\wwwroot\cbc\mvep\development\dev1\web\WebApplication\Content\.sencha\app\watch-impl.xml:4: The following error occurred while executing this line: 

CMD Build Error while converting to ExtJS 5