title: SSIS throwing Unspecified Error when trying to edit Excel Columns in BIDS
body: <p>I have an SSIS package that runs without issue in debug mode, but when I try to edit the Excel Source to add more columns it is suddenly throwing the Unspecified Error</p>
  
  <pre><code>Error at MMR_MonthlyFiles_Import [Connection manager "Excel"]: SSIS Error Code
  DTS_E_OLEDBERROR.  An OLE DB error has occurred. Error code: 0x80004005.
  An OLE DB record is available.  Source: "Microsoft Access Database Engine"  
  Hresult: 0x80004005  Description: "Unspecified error".
  
  Error at Add to Temp Table [Excel Source [1]]: SSIS Error Code 
  DTS_E_CANNOTACQUIRECONNECTIONFROMCONNECTIONMANAGER.  The AcquireConnection 
  method call to the connection manager "Excel" failed with error code 0xC0202009  
  There may be error messages posted before this with more information on why the 
  AcquireConnection method call failed.
  
  Exception from HRESULT: 0xC020801C (Microsoft.SqlServer.DTSPipelineWrap)
  </code></pre>
  
  <p>The path to the excel file opens without issue (I'm using a variable that holds the path and have pasted it into an explorer window and it opened the file).  I have tried editing the Excel source on two other machines (other developers) and they had no issues and did not get the above error.</p>
  
  <p>I was thinking of having the drivers re-installed, but if I click the debug/run button in BIDS it runs without issue so I don't think that will help.  I have also tried rebooting several times and the issue still is not resolved.</p>
  
  <p>Does anyone have any suggestions?</p>
  
  <p>Thanks</p>