Server Error in '/' Application.

ORA-12154: TNS:could not resolve the connect identifier specified

Description: 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.

Exception Details: System.Data.OracleClient.OracleException: ORA-12154: TNS:could not resolve the connect identifier specified


Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:


[OracleException (0x80131938): ORA-12154: TNS:could not resolve the connect identifier specified
]
   System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject) +1088
   System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) +143
   System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) +245
   System.Data.OracleClient.OracleConnection.Open() +54
   system.doe.profiles.classes.profileshome.OrgDropdownClass.getOrgDropDownList(ProfilesNavBean bProfiles) +4182
   system.doe.profiles.classes.profileshome.OrgDropdownClass.getOrgDropDown(ProfilesNavBean bProfiles) +739
   system.doe.profiles.classes.profileshome.ProfilesHomeClass.getOrgDropDown(ProfilesNavBean bProfiles) +99
   Mcas_Mcascharts2_Aspx.Page_Load(Object Sender, EventArgs E) +2659
   System.Web.UI.Control.OnLoad(EventArgs e) +108
   System.Web.UI.Control.LoadRecursive() +90
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1533


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.8.4700.0