Erro no Código de Barras no iReport

Programação Java
#1

Boa tarde.

Alguém pode me ajudar com esse erro?

Desde já obrigado

Exception in thread "main" net.sf.jasperreports.engine.fill.JRExpressionEvalException: Error evaluating expression : 
	Source text : it.businesslogic.ireport.barcode.BcImage.getBarcodeImage(13,"0815",false,false,null,0,0)
	at net.sf.jasperreports.engine.fill.JREvaluator.evaluate(JREvaluator.java:197)
	at net.sf.jasperreports.engine.fill.JRCalculator.evaluate(JRCalculator.java:537)
	at net.sf.jasperreports.engine.fill.JRCalculator.evaluate(JRCalculator.java:505)
	at net.sf.jasperreports.engine.fill.JRFillElement.evaluateExpression(JRFillElement.java:826)
	at net.sf.jasperreports.engine.fill.JRFillImage.evaluateImage(JRFillImage.java:890)
	at net.sf.jasperreports.engine.fill.JRFillImage.evaluate(JRFillImage.java:871)
	at net.sf.jasperreports.engine.fill.JRFillElementContainer.evaluate(JRFillElementContainer.java:275)
	at net.sf.jasperreports.engine.fill.JRFillBand.evaluate(JRFillBand.java:426)
	at net.sf.jasperreports.engine.fill.JRHorizontalFiller.fillFixedBand(JRHorizontalFiller.java:1462)
	at net.sf.jasperreports.engine.fill.JRHorizontalFiller.fillDetail(JRHorizontalFiller.java:721)
	at net.sf.jasperreports.engine.fill.JRHorizontalFiller.fillReportStart(JRHorizontalFiller.java:259)
	at net.sf.jasperreports.engine.fill.JRHorizontalFiller.fillReport(JRHorizontalFiller.java:117)
	at net.sf.jasperreports.engine.fill.JRBaseFiller.fill(JRBaseFiller.java:879)
	at net.sf.jasperreports.engine.fill.JRBaseFiller.fill(JRBaseFiller.java:801)
	at net.sf.jasperreports.engine.fill.JRFiller.fillReport(JRFiller.java:89)
	at net.sf.jasperreports.engine.JasperFillManager.fillReport(JasperFillManager.java:601)
	at Principal.ImprimeRalatorio.gerar(ImprimeRalatorio.java:67)
	at Principal.ImprimeRalatorio.<init>(ImprimeRalatorio.java:31)
	at Principal.ImprimeRalatorio.main(ImprimeRalatorio.java:96)
Caused by: java.lang.NoClassDefFoundError: net/sourceforge/barbecue/Barcode
	at EtiquetaSuporteVasoPlanta_1253546644975_404482.evaluate(EtiquetaSuporteVasoPlanta_1253546644975_404482:242)
	at net.sf.jasperreports.engine.fill.JREvaluator.evaluate(JREvaluator.java:186)
	... 18 more
Caused by: java.lang.ClassNotFoundException: net.sourceforge.barbecue.Barcode
	at java.net.URLClassLoader$1.run(Unknown Source)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at java.lang.ClassLoader.loadClassInternal(Unknown Source)
	... 20 more
#2

Se eu não me engano está faltando a lib
barbecue-1.5-beta1.jar
no seu projeto

#3

OK !

#4