Seam Validator throws NullPointerException for "{0}" cannot be resolved to a type" error

[java] !ENTRY org.eclipse.wst.validation 4 0 2008-01-23 19:40:16.622

[java] !MESSAGE
[java] *** ERROR ***: Wed Jan 23 19:40:16 EST 2008 java.lang.NullPointerException
[java] at org.jboss.tools.seam.internal.core.validation.SeamCoreValidator.validateXmlComponentDeclarations(SeamCoreValidator.java:451)
[java] at org.jboss.tools.seam.internal.core.validation.SeamCoreValidator.validateComponent(SeamCoreValidator.java:405)
[java] at org.jboss.tools.seam.internal.core.validation.SeamCoreValidator.validateComponent(SeamCoreValidator.java:326)
[java] at org.jboss.tools.seam.internal.core.validation.SeamCoreValidator.validate(SeamCoreValidator.java:163)
[java] at org.jboss.tools.seam.internal.core.validation.SeamValidatorManager.validate(SeamValidatorManager.java:78)
[java] at org.jboss.tools.seam.internal.core.validation.SeamValidatorManager.validateInJob(SeamValidatorManager.java:63)
[java] at org.eclipse.wst.validation.internal.operations.ValidatorJob.run(ValidatorJob.java:75)
[java] at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)