ORA-12154: TNS:não foi possível resolver o identificador de conexão especificado<br />OracleInternal.Network.NetworkException (0x00002F7A): ORA-12154: TNS:não foi possível resolver o identificador de conexão especificado
   at OracleInternal.Network.AddressResolution..ctor(String TNSAlias, String instanceName)
   at OracleInternal.Network.OracleCommunication.DoConnect(String tnsDescriptor)
   at OracleInternal.ServiceObjects.OracleConnectionImpl.Connect(ConnectionString cs, Boolean bOpenEndUserSession, String instanceName)<br /><br />Oracle Data Provider for .NET, Managed Driver<br />   at PortalSiga.OracleDAL.OracleDataAccess.ExecuteDataTable(String commandText, OracleParameter[] parametros) in D:\Projetos\PortalNovo\OracleDAL\OracleDataAccess.cs:line 137
   at WebInterface.Default.Page_Load(Object sender, EventArgs e) in D:\Projetos\PortalNovo\WebInterface\Default.aspx.cs:line 15
   at System.Web.UI.Control.OnLoad(EventArgs e)
   at PortalSiga.WebControls.PageBase.OnLoad(EventArgs e) in D:\Projetos\PortalNovo\WebControls\PageBase.cs:line 278
   at System.Web.UI.Control.LoadRecursive()
   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)<br />System.Data.DataTable ExecuteDataTable(System.String, Oracle.ManagedDataAccess.Client.OracleParameter[])