[metaas-dev] Please help me

[Billy Wang]

Hi, I encounter some problem when I use metaas.
 I copy the example code shown in metaas api 5.0 directly, the code is shown as follow:
 
ActionScriptFactory fact = new ActionScriptFactory();
ActionScriptProject proj = fact.newEmptyASProject(".");
ASCompilationUnit unit = proj.newClass("Test");
ASClassType clazz = (ASClassType)unit.getType();
ASMethod meth = clazz.newMethod("test", Visibility.PUBLIC, "void");
meth.addStatement("trace('Hello world')");
proj.writeAll();
 however, when i try to compile it, there are errors:
 Exception in thread "main" java.lang.NullPointerException
     at uk.co.badgersinfoil.metaas.impl.ASTActionScriptProject.filenameFor(ASTActionScriptProject.java:138)
     at uk.co.badgersinfoil.metaas.impl.ASTActionScriptProject.write(ASTActionScriptProject.java:127)
     at uk.co.badgersinfoil.metaas.impl.ASTActionScriptProject.writeAll(ASTActionScriptProject.java:111)
 
  i don't know how to fix it. can u give me some suggestion? thank u.
 		
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