16:11:42.903 [main] INFO  o.o.b.impl.report.BenchmarkReport - Generating benchmark report...
Sep 21, 2016 4:11:45 PM freemarker.log.JDK14LoggerFactory$JDK14Logger error
SEVERE: Template processing error: "Expression subSingleSummaryChartShown is undefined on line 611, column 75 in benchmarkReport.html.ftl."

Expression subSingleSummaryChartShown is undefined on line 611, column 75 in benchmarkReport.html.ftl.
The problematic instruction:
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==> if firstRow && !subSingleSummaryChartShown [on line 611, column 57 in benchmarkReport.html.ftl]
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Java backtrace for programmers:
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freemarker.core.InvalidReferenceException: Expression subSingleSummaryChartShown is undefined on line 611, column 75 in benchmarkReport.html.ftl.
	at freemarker.core.TemplateObject.assertNonNull(TemplateObject.java:125)
	at freemarker.core.Expression.isTrue(Expression.java:145)
	at freemarker.core.NotExpression.isTrue(NotExpression.java:66)
	at freemarker.core.AndExpression.isTrue(AndExpression.java:68)
	at freemarker.core.ConditionalBlock.accept(ConditionalBlock.java:77)
	at freemarker.core.Environment.visit(Environment.java:221)
	at freemarker.core.MixedContent.accept(MixedContent.java:92)
	at freemarker.core.Environment.visit(Environment.java:221)
	at freemarker.core.IteratorBlock$Context.runLoop(IteratorBlock.java:179)
	at freemarker.core.Environment.visit(Environment.java:428)
	at freemarker.core.IteratorBlock.accept(IteratorBlock.java:102)
	at freemarker.core.Environment.visit(Environment.java:221)
	at freemarker.core.MixedContent.accept(MixedContent.java:92)
	at freemarker.core.Environment.visit(Environment.java:221)
	at freemarker.core.ConditionalBlock.accept(ConditionalBlock.java:79)
	at freemarker.core.Environment.visit(Environment.java:221)
	at freemarker.core.MixedContent.accept(MixedContent.java:92)
	at freemarker.core.Environment.visit(Environment.java:221)
	at freemarker.core.IteratorBlock$Context.runLoop(IteratorBlock.java:179)
	at freemarker.core.Environment.visit(Environment.java:428)
	at freemarker.core.IteratorBlock.accept(IteratorBlock.java:102)
	at freemarker.core.Environment.visit(Environment.java:221)
	at freemarker.core.MixedContent.accept(MixedContent.java:92)
	at freemarker.core.Environment.visit(Environment.java:221)
	at freemarker.core.Environment.process(Environment.java:199)
	at freemarker.template.Template.process(Template.java:259)
	at org.optaplanner.benchmark.impl.report.BenchmarkReport.writeHtmlOverviewFile(BenchmarkReport.java:756)
	at org.optaplanner.benchmark.impl.report.BenchmarkReport.writeReport(BenchmarkReport.java:288)
	at org.optaplanner.benchmark.impl.PlannerBenchmarkRunner.benchmarkingEnded(PlannerBenchmarkRunner.java:324)
	at org.optaplanner.benchmark.impl.PlannerBenchmarkRunner.benchmark(PlannerBenchmarkRunner.java:108)
	at org.iypt.planner.benchmark.TournamentBenchmark.main(TournamentBenchmark.java:15)