Error during ant compilation of Smartgwt project

I am trying to ant compile my gwtp project. Am using Smargwt-4.1p jar. Not able 
to figure out the reason for this error:  

  [java]    Finding entry point classes
     [java]       [ERROR] Errors in 'jar:file:smartgwt-4.1p.jar!/com/smartgwt/client/widgets/f
orm/fields/events/EditorEnterEvent.java'
     [java]          [ERROR] Line 135: Referencing method 'com.smartgwt.client.w
idgets.form.DynamicForm.getByJSObject(Lcom/google/gwt/core/client/JavaScriptObje
ct;)': unable to resolve method
     [java]       [ERROR] Errors in 'jar:file:smartgwt-4.1p.jar!/com/smartgwt/client/widgets/f
orm/fields/events/EditorExitEvent.java'
     [java]          [ERROR] Line 135: Referencing method 'com.smartgwt.client.w
idgets.form.DynamicForm.getByJSObject(Lcom/google/gwt/core/client/JavaScriptObje
ct;)': unable to resolve method
     [java]       [ERROR] Errors in 'jar:file:smartgwt-4.1p.jar!/com/smartgwt/client/widgets/f
orm/fields/events/PickerIconClickEvent.java'
     [java]          [ERROR] Line 135: Referencing method 'com.smartgwt.client.w
idgets.form.DynamicForm.getByJSObject(Lcom/google/gwt/core/client/JavaScriptObje
ct;)': unable to resolve method
     [java]       [ERROR] Errors in 'jar:filesmartgwt-4.1p.jar!/com/smartgwt/client/widgets/f
orm/fields/events/ValueHoverEvent.java'
     [java]          [ERROR] Line 147: Referencing method 'com.smartgwt.client.w
idgets.form.DynamicForm.getByJSObject(Lcom/google/gwt/core/client/JavaScriptObje
ct;)': unable to resolve method
     [java]          [ERROR] Hint: Previous compiler errors may have made this t
ype unavailable
     [java]          [ERROR] Hint: Check the inheritance chain from your module;
 it may not be inheriting a required module or a module may not be adding its so
urce path entries properly
     [java] Exception in thread "UnitWriteThread" java.lang.RuntimeException: Un
able to read from byte cache
     [java]     at com.google.gwt.dev.util.DiskCache.transferToStream(DiskCache.
java:196)
     [java]     at com.google.gwt.dev.util.DiskCacheToken.writeObject(DiskCacheT
oken.java:91)
     [java]     at sun.reflect.GeneratedMethodAccessor33.invoke(Unknown Source)
     [java]     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMet
hodAccessorImpl.java:25)
     [java]     at java.lang.reflect.Method.invoke(Method.java:597)
     [java]     at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass
.java:940)
Original issue reported on code.google.com by sidjo...@gmail.com on 11 Aug 2014 at 3:27
nihad640 / smartgwt

Error during ant compilation of Smartgwt project #755
