Stacktrace when adding a label

2010-07-12 17:46:12,354 INFO [187416991@qtp-306189161-7] [AccessLogFilter:63] admin http://xxxxgold.sydney.atlassian.com:8085/bamboo/rest/api/latest/build/ATL-CO-153?_=1278920772352 98047kb
2010-07-12 17:46:12,525 ERROR [1991954822@qtp-306189161-11] [Log4JLoggerFactory$Log4JLogger:96] Expression labels is undefined on line 5, column 8 in fragments/labels/labelInput.ftl.

Expression labels is undefined on line 5, column 8 in fragments/labels/labelInput.ftl.
The problematic instruction:
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==> list labels as label [on line 5, column 1 in fragments/labels/labelInput.ftl]
 in user-directive compress [on line 3, column 1 in fragments/labels/labelInput.ftl]
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Java backtrace for programmers:
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freemarker.core.InvalidReferenceException: Expression labels is undefined on line 5, column 8 in fragments/labels/labelInput.ftl.
	at freemarker.core.TemplateObject.assertNonNull(TemplateObject.java:124)
	at freemarker.core.IteratorBlock.accept(IteratorBlock.java:100)
	at freemarker.core.Environment.visit(Environment.java:210)
	at freemarker.core.MixedContent.accept(MixedContent.java:92)
	at freemarker.core.Environment.visit(Environment.java:210)
	at freemarker.core.Environment.visit(Environment.java:299)
	at freemarker.core.UnifiedCall.accept(UnifiedCall.java:130)