unable to lode moduloe entry point class

[princeezra]

Unable to load module entry point class org.gwtbook.client.server1
(see associated exception for details)
[ERROR] Unable to load module entry point class
org.gwtbook.client.server1 (see associated exception for details)
java.lang.NullPointerException: null
at org.gwtbook.client.server1.onModuleLoad(server1.java:56)
at com.google.gwt.dev.shell.ModuleSpace.onLoad(ModuleSpace.java:342)
at
com.google.gwt.dev.shell.BrowserWidget.attachModuleSpace(BrowserWidget.java:
326)
at com.google.gwt.dev.shell.ie.BrowserWidgetIE6.access
$200(BrowserWidgetIE6.java:36)
at
com.google.gwt.dev.shell.ie.BrowserWidgetIE6$External.gwtOnLoad(BrowserWidgetIE6.java:
70)
at
com.google.gwt.dev.shell.ie.BrowserWidgetIE6$External.invoke(BrowserWidgetIE6.java:
125)
at
com.google.gwt.dev.shell.ie.IDispatchImpl.Invoke(IDispatchImpl.java:
293)
at
com.google.gwt.dev.shell.ie.IDispatchImpl.method6(IDispatchImpl.java:
196)
at
org.eclipse.swt.internal.ole.win32.COMObject.callback6(COMObject.java:
117)
at org.eclipse.swt.internal.win32.OS.DispatchMessage(OS.java:1925)


any idea why this error has occured ....????

[walden]

An NPE is a plain old Java exception. You've got a null reference and
you're trying to follow it to an object. Right there on line 56.
Just fix that. But if you don't know that much about Java, I think
you're in for some trouble with GWT. Better get some familiarity with
Java first?

Walden

On Aug 26, 12:48 pm, princeezra <princee...@gmail.com> wrote:
> Unable to load module entry point class org.gwtbook.client.server1
> (see associated exception for details)
> [ERROR] Unable to load module entry point class
> org.gwtbook.client.server1 (see associated exception for details)
> java.lang.NullPointerException: null
>         at org.gwtbook.client.server1.onModuleLoad(server1.java:56)
>         at com.google.gwt.dev.shell.ModuleSpace.onLoad(ModuleSpace.java:342)
>         at
> com.google.gwt.dev.shell.BrowserWidget.attachModuleSpace(BrowserWidget.java­:
> 326)
>         at com.google.gwt.dev.shell.ie.BrowserWidgetIE6.access
> $200(BrowserWidgetIE6.java:36)
>         at

> com.google.gwt.dev.shell.ie.BrowserWidgetIE6$External.gwtOnLoad(BrowserWidg­etIE6.java:
> 70)
>         at
> com.google.gwt.dev.shell.ie.BrowserWidgetIE6$External.invoke(BrowserWidgetI­E6.java: