Error when using built-in Jasper Studio Expression Editor

[parkinson.philip]

I am a jasper studio newb but I have put in a decent search for an answer before posting.

I was just testing out a simple expression in Jasper Studio 5.6.0, namely LEFT(fieldname,4). The field is a string. The expression editor parsed it OK.

However  it compiles with the error below when I attempt a preview. Almost like it cannot find the TextFunctions.class though when I browse in project explorer it appear to be under this jar.

"jasperreports-functions-5.6.0-SNAPSHOT.jar"

Any advice?

***************************************************************

net.sf.jasperreports.engine.JRException: Errors were encountered when compiling report expressions class file:
1. net.sf.jasperreports.functions.standard.TextFunctions cannot be resolved to a type
        return getFunctionSupport(net.sf.jasperreports.functions.standard.TextFunctions.class).LEFT(arg0, arg1);
                                  <--------------------------------------------------->
2. net.sf.jasperreports.functions.standard.TextFunctions cannot be resolved to a type
        return getFunctionSupport(net.sf.jasperreports.functions.standard.TextFunctions.class).LEFT(arg0);
                                  <--------------------------------------------------->
2 errors


    at net.sf.jasperreports.engine.design.JRAbstractCompiler.compileReport(JRAbstractCompiler.java:204)

    at net.sf.jasperreports.eclipse.builder.JasperReportCompiler.compileReport(JasperReportCompiler.java:172)

    at com.jaspersoft.studio.editor.preview.view.control.ReportControler.compileJasperDesign(ReportControler.java:394)

    at com.jaspersoft.studio.editor.preview.view.control.ReportControler.access$14(ReportControler.java:382)

    at com.jaspersoft.studio.editor.preview.view.control.ReportControler$4.run(ReportControler.java:315)

    at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)

[rajesh.sirsikar]

Can you quickly send me a screenshot of your expression editor window. I tried replicating the error, but could not. I am able to use LEFT Function and its working fine.

[rajesh.sirsikar]

I have created a Variable with String Class and teh expression is as follows

This works and I have got teh perfect result.

[parkinson.philip]

Well after deleting the problem control and recreating (a fourth time) it worked. Syntax looked fine the first time so go figure.