If you read the whole stacktrace you'll see that there are other
errors:

 Scanning for additional dependencies: jar:file:/D:/Program%20Files/
gxt-2.0-m1/gxt.jar!/com/extjs/gxt/ui/client/data/BeanModelLookup.java
      Computing all possible rebind results for
'com.extjs.gxt.ui.client.data.BeanModelLookup'
         Rebinding com.extjs.gxt.ui.client.data.BeanModelLookup
            Invoking <generate-with
class='com.extjs.gxt.ui.rebind.core.BeanModelGenerator'/>
               [ERROR] Class
com.extjs.gxt.ui.client.data.BeanModelLookup not found.

It looks like it's a problem with your module declarations but without
more details I can't be sure.

Cheers,

Salvador

On Apr 18, 1:22 pm, bruce <[email protected]> wrote:
> when I try compile a sample of Extjs-GWT. it hit the follow exception.
> but I have the missing class
> "com.pipnet.resources.client.model.Customer" in the same project.
> anybody can tell me why? thanks a lot
>
> Compiling module com.pipnet.desktop.Desktop
>    Refreshing module from source
>       Refreshing TypeOracle
>          Processing types in compilation unit: file:/C:/Documents%20and
> %20Settings/bruce.gao/workspace_3.4/Desktop/src/com/pipnet/resources/
> client/model/CustomerBeanModel.java
>             Found type 'CustomerBeanModel'
>                Resolving annotation '@BEAN
> (com.pipnet.resources.client.model.Customer.class)'
>                   [ERROR]
> java.lang.ClassNotFoundException:
> com.pipnet.resources.client.model.Customer
>         at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
>         at java.security.AccessController.doPrivileged(Native Method)
>         at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
>         at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
>         at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:268)
>         at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
>         at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
>         at java.lang.Class.forName0(Native Method)
>         at java.lang.Class.forName(Class.java:242)
>         at com.google.gwt.dev.javac.TypeOracleMediator.getClassLiteral
> (TypeOracleMediator.java:763)
>         at
> com.google.gwt.dev.javac.TypeOracleMediator.getAnnotationElementValue
> (TypeOracleMediator.java:674)
>         at
> com.google.gwt.dev.javac.TypeOracleMediator.createAnnotationInstance
> (TypeOracleMediator.java:442)
>         at com.google.gwt.dev.javac.TypeOracleMediator.resolveAnnotation
> (TypeOracleMediator.java:836)
>         at com.google.gwt.dev.javac.TypeOracleMediator.resolveAnnotations
> (TypeOracleMediator.java:857)
>         at com.google.gwt.dev.javac.TypeOracleMediator.resolveTypeDeclaration
> (TypeOracleMediator.java:1384)
>         at com.google.gwt.dev.javac.TypeOracleMediator.addNewUnits
> (TypeOracleMediator.java:389)
>         at com.google.gwt.dev.javac.TypeOracleMediator.refresh
> (TypeOracleMediator.java:417)
>         at com.google.gwt.dev.javac.CompilationState.refresh
> (CompilationState.java:179)
>         at com.google.gwt.dev.javac.CompilationState.<init>
> (CompilationState.java:93)
>         at com.google.gwt.dev.cfg.ModuleDef.getCompilationState
> (ModuleDef.java:264)
>         at com.google.gwt.dev.Precompile.precompile(Precompile.java:283)
>         at com.google.gwt.dev.Compiler.run(Compiler.java:170)
>         at com.google.gwt.dev.Compiler$1.run(Compiler.java:124)
>         at com.google.gwt.dev.CompileTaskRunner.doRun(CompileTaskRunner.java:
> 84)
>         at com.google.gwt.dev.CompileTaskRunner.runWithAppropriateLogger
> (CompileTaskRunner.java:78)
>         at com.google.gwt.dev.Compiler.main(Compiler.java:131)
>    Scanning for additional dependencies: jar:file:/D:/Program%20Files/
> gxt-2.0-m1/gxt.jar!/com/extjs/gxt/ui/client/data/BeanModelLookup.java
>       Computing all possible rebind results for
> 'com.extjs.gxt.ui.client.data.BeanModelLookup'
>          Rebinding com.extjs.gxt.ui.client.data.BeanModelLookup
>             Invoking <generate-with
> class='com.extjs.gxt.ui.rebind.core.BeanModelGenerator'/>
>                [ERROR] Class
> com.extjs.gxt.ui.client.data.BeanModelLookup not found.
> java.lang.NullPointerException
>         at com.extjs.gxt.ui.rebind.core.BeanModelGenerator.getMarkerBean
> (BeanModelGenerator.java:170)
>         at com.extjs.gxt.ui.rebind.core.BeanModelGenerator.generate
> (BeanModelGenerator.java:53)
>         at com.google.gwt.dev.cfg.RuleGenerateWith.realize
> (RuleGenerateWith.java:49)
>         at com.google.gwt.dev.shell.StandardRebindOracle$Rebinder.tryRebind
> (StandardRebindOracle.java:113)
>         at com.google.gwt.dev.shell.StandardRebindOracle$Rebinder.rebind
> (StandardRebindOracle.java:62)
>         at com.google.gwt.dev.shell.StandardRebindOracle.rebind
> (StandardRebindOracle.java:172)
>         at com.google.gwt.dev.shell.StandardRebindOracle.rebind
> (StandardRebindOracle.java:161)
>         at com.google.gwt.dev.Precompile
> $DistillerRebindPermutationOracle.getAllPossibleRebindAnswers
> (Precompile.java:204)
>         at
> com.google.gwt.dev.jdt.WebModeCompilerFrontEnd.doFindAdditionalTypesUsingRebinds
> (WebModeCompilerFrontEnd.java:128)
>         at com.google.gwt.dev.jdt.AbstractCompiler$CompilerImpl.process
> (AbstractCompiler.java:151)
>         at org.eclipse.jdt.internal.compiler.Compiler.compile(Compiler.java:
> 444)
>         at com.google.gwt.dev.jdt.AbstractCompiler$CompilerImpl.compile
> (AbstractCompiler.java:85)
>         at com.google.gwt.dev.jdt.AbstractCompiler$CompilerImpl.compile
> (AbstractCompiler.java:181)
>         at com.google.gwt.dev.jdt.AbstractCompiler$CompilerImpl.access$400
> (AbstractCompiler.java:71)
>         at com.google.gwt.dev.jdt.AbstractCompiler.compile
> (AbstractCompiler.java:473)
>         at
> com.google.gwt.dev.jdt.WebModeCompilerFrontEnd.getCompilationUnitDeclarations
> (WebModeCompilerFrontEnd.java:73)
>         at com.google.gwt.dev.jjs.JavaToJavaScriptCompiler.precompile
> (JavaToJavaScriptCompiler.java:254)
>         at com.google.gwt.dev.Precompile.precompile(Precompile.java:300)
>         at com.google.gwt.dev.Compiler.run(Compiler.java:170)
>         at com.google.gwt.dev.Compiler$1.run(Compiler.java:124)
>         at com.google.gwt.dev.CompileTaskRunner.doRun(CompileTaskRunner.java:
> 84)
>         at com.google.gwt.dev.CompileTaskRunner.runWithAppropriateLogger
> (CompileTaskRunner.java:78)
>         at com.google.gwt.dev.Compiler.main(Compiler.java:131)
>    [ERROR] Errors in 'jar:file:/D:/Program%20Files/gxt-2.0-m1/gxt.jar!/
> com/extjs/gxt/ui/client/data/BeanModelLookup.java'
>       [ERROR] Line 24:  Failed to resolve
> 'com.extjs.gxt.ui.client.data.BeanModelLookup' via deferred binding
>    [ERROR] Cannot proceed due to previous errors
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