title: System.Data.OleDb.OleDbException: Unspecified error
body: <p>I'm Totally new in ASP.net and currently working on a CRM application. This project uses <code>.mdb</code> files as backend but I am getting the following runtime error:</p>
  
  <p><strong>Description:</strong> 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.</p>
  
  <p><strong>Exception Details:</strong> </p>
  
  <blockquote>
    <p>System.Data.OleDb.OleDbException:
    Unspecified error
         Stack Trace:</p>
    
    <p>[OleDbException (0x80004005):
    Unspecified error]<br>
    EmployeeManager.isUser(String strUID,
    String strPswd) in
    d:\hosting\nitindia\App_Code\EmployeeManager.vb:481
    Employees.BtnSubmit_Click(Object
    sender, EventArgs e) in
    d:\hosting\nitindia\Employees.aspx.vb:35
    System.Web.UI.WebControls.Button.OnClick(EventArgs
    e) +111<br>
    System.Web.UI.WebControls.Button.RaisePostBackEvent(String
    eventArgument) +110<br>
    System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String
    eventArgument) +10<br>
    System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler
    sourceControl, String eventArgument)
    +13    System.Web.UI.Page.RaisePostBackEvent(NameValueCollection
    postData) +36<br>
    System.Web.UI.Page.ProcessRequestMain(Boolean
    includeStagesBeforeAsyncPoint, Boolean
    includeStagesAfterAsyncPoint) +1565</p>
  </blockquote>
  
  <p>The above error occurs only when we upload these pages &amp; test online. When running on <code>localhost</code> the error is not being raised.</p>
  
  <p>What is the cause of this issue, and solution?</p>