Reportviewer - Methodaccessexception

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Good afternoon,

I use Visualstudio 2015 Community on a Windows 10 x64 and am encountering the following problem when running the debug of a Windows Form Application project:

    System.MethodAccessException was unhandled
  HResult=-2146233072
  Message=Falha no método 'Microsoft.Reporting.WinForms.LocalReport..ctor()' ao tentar acessar o método 'Microsoft.ReportingServices.StandalonePreviewStore..ctor()'.
  Source=Sistema
  StackTrace:
       em Microsoft.Reporting.WinForms.LocalReport..ctor() na C:\Projetos\VisualStudio\Sistema\Sistema\Beans\GuiaSadt.cs:linha 0
       em Microsoft.Reporting.WinForms.ReportViewer.CreateLocalReport() na C:\Projetos\VisualStudio\Sistema\Sistema\Beans\GuiaSadt.cs:linha 0
       em Microsoft.Reporting.WinForms.ReportViewer.Reset() na C:\Projetos\VisualStudio\Sistema\Sistema\Beans\GuiaSadt.cs:linha 0
       em Microsoft.Reporting.WinForms.ReportViewer..ctor() na C:\Projetos\VisualStudio\Sistema\Sistema\Beans\GuiaSadt.cs:linha 0
       em Sistema.FrmPrincipal.FrmPrincipal_Load(Object sender, EventArgs e) na C:\Projetos\VisualStudio\Sistema\Sistema\FrmPrincipal.cs:linha 181
       em System.Windows.Forms.Form.OnLoad(EventArgs e)
       em System.Windows.Forms.Form.OnCreateControl()
       em System.Windows.Forms.Control.CreateControl(Boolean fIgnoreVisible)
       em System.Windows.Forms.Control.CreateControl()
       em System.Windows.Forms.Control.WmShowWindow(Message& m)
       em System.Windows.Forms.Control.WndProc(Message& m)
       em System.Windows.Forms.ScrollableControl.WndProc(Message& m)
       em System.Windows.Forms.Form.WmShowWindow(Message& m)
       em System.Windows.Forms.Form.WndProc(Message& m)
       em System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
       em System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
       em System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
  InnerException:

I am using Control Reportviewer inside a Form with nothing else in it and this error happens.

Is there any reference or configuration missing in my project? Grateful.

EDIT: Where the error occurs is the following excerpt:

this.reportViewer1 = new Microsoft.Reporting.WinForms.ReportViewer();
c# visual-studio-2015 reportviewer

  • Has more information of the error?

  • @Unfortunately not denercarvalho, that’s all that appears in the detail panel of the exception, there is some other information that I can put here or an image.. thanks for the help

  • What is the method of reportviewer q this given error?

  • @Denercarvalho I edited the question with the passage that launches the Exception

  • You are initiating the object in the load event?

  • This this.reportViewer1 = new Microsoft.Reporting.WinForms.ReportViewer(); is the content of line 181?

  • @Denercarvalho When I drag the control pro form, the code is automatically created in the form Load event this.reportViewer1.RefreshReport(); which is line 181 already the new ReportViewer() is chado from the InitializeComponents() form builder

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The problem that was occurring was with Ilmerge.

Since Ilmerge merged with . exe the DLL’s used by the project Reportviewer did not find the reference causing the error.

Removing Ilmerge from the project everything works again.

Browser other questions tagged c# visual-studio-2015 reportviewer

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