Server Error in '/' Application.

The number of columns in PdfPTable constructor must be greater than zero.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.ArgumentException: The number of columns in PdfPTable constructor must be greater than zero.

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace: 


[ArgumentException: The number of columns in PdfPTable constructor must be greater than zero.]
   iTextSharp.text.pdf.PdfPTable..ctor(Int32 numColumns) +625
   iTextSharp.tool.xml.html.table.Table.IntPdfPTable(Int32 numberOfColumn) +36
   iTextSharp.tool.xml.html.table.Table.End(IWorkerContext ctx, Tag tag, IList`1 currentContent) +1336
   iTextSharp.tool.xml.html.AbstractTagProcessor.EndElement(IWorkerContext ctx, Tag tag, IList`1 currentContent) +146
   iTextSharp.tool.xml.pipeline.html.HtmlPipeline.Close(IWorkerContext context, Tag t, ProcessObject po) +396
   iTextSharp.tool.xml.XMLWorker.EndElement(String tag, String ns) +295
   iTextSharp.tool.xml.parser.XMLParser.EndElement() +159
   iTextSharp.tool.xml.parser.state.ClosingTagState.Process(Char character) +82
   iTextSharp.tool.xml.parser.XMLParser.ParseWithReader(TextReader reader) +297
   iTextSharp.tool.xml.XMLWorkerHelper.ParseXHtml(PdfWriter writer, Document doc, Stream inp, Stream inCssFile, Encoding charset, IFontProvider fontProvider) +53
   iTextSharp.tool.xml.XMLWorkerHelper.ParseXHtml(PdfWriter writer, Document doc, Stream inp, Stream inCssFile) +102
   mini_ielts.Controllers.TestsController.CreatePDF2(String html, String css) +451
   mini_ielts.Controllers.TestsController.Print(Int32 id) +2472
   lambda_method(Closure , ControllerBase , Object[] ) +141
   System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary`2 parameters) +229
   System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters) +35
   System.Web.Mvc.Async.AsyncControllerActionInvoker.<BeginInvokeSynchronousActionMethod>b__39(IAsyncResult asyncResult, ActionInvocation innerInvokeState) +39
   System.Web.Mvc.Async.WrappedAsyncResult`2.CallEndDelegate(IAsyncResult asyncResult) +71
   System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethod(IAsyncResult asyncResult) +42
   System.Web.Mvc.Async.AsyncInvocationWithFilters.<InvokeActionMethodFilterAsynchronouslyRecursive>b__3d() +72
   System.Web.Mvc.Async.<>c__DisplayClass46.<InvokeActionMethodFilterAsynchronouslyRecursive>b__3f() +386
   System.Web.Mvc.Async.<>c__DisplayClass46.<InvokeActionMethodFilterAsynchronouslyRecursive>b__3f() +386
   System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethodWithFilters(IAsyncResult asyncResult) +42
   System.Web.Mvc.Async.<>c__DisplayClass2b.<BeginInvokeAction>b__1c() +38
   System.Web.Mvc.Async.<>c__DisplayClass21.<BeginInvokeAction>b__1e(IAsyncResult asyncResult) +186
   System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeAction(IAsyncResult asyncResult) +38
   System.Web.Mvc.Controller.<BeginExecuteCore>b__1d(IAsyncResult asyncResult, ExecuteCoreState innerState) +29
   System.Web.Mvc.Async.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult) +67
   System.Web.Mvc.Controller.EndExecuteCore(IAsyncResult asyncResult) +53
   System.Web.Mvc.Async.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult) +36
   System.Web.Mvc.Controller.EndExecute(IAsyncResult asyncResult) +38
   System.Web.Mvc.MvcHandler.<BeginProcessRequest>b__5(IAsyncResult asyncResult, ProcessRequestState innerState) +44
   System.Web.Mvc.Async.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult) +67
   System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult) +38
   System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +399
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +157

Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.6.1590.0