Error when i clean project

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Install Cypal Studio on Eclipse 3.3 Europa
2. Create a dynamic web application with GWT facet
3. Create a Module with an entry point
4. Clean the project

What is the expected output? What do you see instead?
Exception in thread "main" java.lang.NoSuchMethodError:
org.eclipse.jdt.internal.compiler.CompilationResult.getErrors()[Lorg/eclipse/jdt
/core/compiler/IProblem;
    at
com.google.gwt.dev.jdt.AbstractCompiler$ICompilerRequestorImpl.acceptResult(Abst
ractCompiler.java:213)
    at org.eclipse.jdt.internal.compiler.Compiler.compile(Compiler.java:417)
    at
com.google.gwt.dev.jdt.AbstractCompiler$CompilerImpl.compile(AbstractCompiler.ja
va:74)
    at
com.google.gwt.dev.jdt.AbstractCompiler$CompilerImpl.compile(AbstractCompiler.ja
va:162)
    at
com.google.gwt.dev.jdt.AbstractCompiler$CompilerImpl.access$600(AbstractCompiler
.java:61)
    at com.google.gwt.dev.jdt.AbstractCompiler.compile(AbstractCompiler.java:430)
    at
com.google.gwt.dev.jdt.AstCompiler.getCompilationUnitDeclarations(AstCompiler.ja
va:117)
    at com.google.gwt.dev.jdt.TypeOracleBuilder.build(TypeOracleBuilder.java:354)
    at com.google.gwt.dev.cfg.ModuleDef.getTypeOracle(ModuleDef.java:294)
    at com.google.gwt.dev.GWTCompiler.distill(GWTCompiler.java:321)
    at com.google.gwt.dev.GWTCompiler.run(GWTCompiler.java:755)
    at com.google.gwt.dev.GWTCompiler.run(GWTCompiler.java:745)
    at com.google.gwt.dev.GWTCompiler.main(GWTCompiler.java:213)

What version of the product are you using? On what operating system?
GWT 1.4.60
Cypal RC4
Eclipse 3.3 Europ
JDK 1.6
Windows Vista
EMF 2.3.1
GEF 3.2.1
All install from scratch

Please provide any additional information below.

Original issue reported on code.google.com by ypic...@gmail.com on 24 Oct 2007 at 3:35

[GoogleCodeExporter]

It doesn't look like Cypal Studio's error. Do you get this error when running 
the
compiler from command line?

Original comment by grprakash on 24 Oct 2007 at 4:38

[GoogleCodeExporter]

Googling around, I can see few others also get this error. Some problem with 
your
classpath. This is not an issue with Cypal Studio, so marking this as invalid. 

Original comment by grprakash on 25 Oct 2007 at 7:53

• Changed state: Invalid

[GoogleCodeExporter]

What in the classpath can do this error ? 
I add anything.
I juste create the project Web dynamic with the GWT facet .

Original comment by ypic...@gmail.com on 25 Oct 2007 at 8:35