title: SSIS 2012 Method not found: void
body: <p>I recently got this error in every SSIS package (using Visual Studio 2012), when I want to open a OLE DB source component:</p>
  
  <pre><code>===================================
  
  Method not found: 'Void Microsoft.DataTransformationServices.DataFlowUI.DataFlowConnectionPage.set_DataPreviewTimeout(Int32)'. (Microsoft Visual Studio)
  
  ------------------------------
  Program Location:
  
  at Microsoft.DataTransformationServices.DataFlowUI.OleDbSourceUI.SetConnectionPageDescriptions(DataFlowConnectionPage connectionPage)
  at Microsoft.DataTransformationServices.DataFlowUI.DataFlowAdapterUI.AddCommonConnectionPage(DataFlowComponentForm form, String helpKeyword)
  at Microsoft.DataTransformationServices.DataFlowUI.OleDbSourceUI.AddPagesToForm(DataFlowComponentForm form)
  at Microsoft.DataTransformationServices.DataFlowUI.DataFlowComponentUI.EditImpl(IWin32Window parentControl)
  at Microsoft.DataTransformationServices.DataFlowUI.DataFlowComponentUI.Edit(IWin32Window parentWindow, Variables variables, Connections connections)
  </code></pre>
  
  <p>It worked fine last week and I don't think I changed anything since then. Any suggestions?</p>