I'm getting “The report definition for report 'xxxx.rdlc' has not been specified” in my RDLC report

Question

I\'ve created an rdlc report. I have a reportViewer on my form. When I try to load the report I get : \"The report definition for report \'xxxx.rdlc\' has not been specifie

Answer 1

I was getting the same error but I'm loading my report in a different way. I followed the instruction on MSDN. Except where they reference ReportEmbeddedResource I, instead, used ReportPath. When I make that change my report loads.

public partial class ReportViewer : Page
{
    private bool _isReportViewerLoaded;

    public ReportViewer()
    {
        InitializeComponent();
        _reportViewer.Load += _reportViewer_Load;
    }

    void _reportViewer_Load(object sender, EventArgs e)
    {
        if (!_isReportViewerLoaded)
        {
            Microsoft.Reporting.WinForms.ReportDataSource reportDataSource1 = new Microsoft.Reporting.WinForms.ReportDataSource();
            BossbergDataset dataset = DataAccessConstants.myDataset;

            dataset.BeginInit();

            reportDataSource1.Name = "DataSet1"; //Name of the report dataset in our .RDLC file
            reportDataSource1.Value = dataset.Table1;
            this._reportViewer.LocalReport.DataSources.Add(reportDataSource1);
         //My testReport.Rdlc has the [Copy to Output Directory] set to [Copy Always]
            this._reportViewer.LocalReport.ReportPath = @"Reports/TestReport.rdlc";

            dataset.EndInit();

            DataAccessConstants.Table1Adapter.Fill(dataset.Table1);

            _reportViewer.RefreshReport();

            _isReportViewerLoaded = true;
        }
    }
}

With my XAML being

Also:

• Make sure you are copying your report files to your output directory. If you are using syntax like ../../Myreport.rdlc you are probably not copying to the output directory.

• Make sure you are referencing the right version of the ReportViewer dll. When I went to References > Add Reference... > Assemblies > Extensions and found the report viewer dll it was an old version. I needed to explicitly navigate to

  C:\Program Files (x86)\Microsoft Visual Studio 12.0\ReportViewer\Microsoft.ReportViewer.WinForms.dll

  To find the latest. If you get it wrong you'll get an error like

  The report definition is not valid. Details: The report definition has an invalid target namespace 'http://schemas.microsoft.com/sqlserver/reporting/2008/01/reportdefinition' which cannot be upgraded.