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:

The source code that generated this unhandled exception can only be shown when compiled in debug mode. To enable this, please follow one of the below steps, then request the URL:

1. Add a "Debug=true" directive at the top of the file that generated the error. Example:

  <%@ Page Language="C#" Debug="true" %>

or:

2) Add the following section to the configuration file of your application:

<configuration>
   <system.web>
       <compilation debug="true"/>
   </system.web>
</configuration>

Note that this second technique will cause all files within a given application to be compiled in debug mode. The first technique will cause only that particular file to be compiled in debug mode.

Important: Running applications in debug mode does incur a memory/performance overhead. You should make sure that an application has debugging disabled before deploying into production scenario.

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.gradrate.classes.gradrateutility.GradRateUtilityClass.getGroupDescription(Int32 mat_id) +108
   system.doe.gradrate.classes.gradratebyorgreport.GradRateByOrgReportClass.getGradRateReportHelp(String district, String school, String year, String rate_type, String year_type, Int32 MAT_ID) +987
   system.doe.gradrate.classes.gradratebyorgreport.GradRateByOrgReportClass.getGradRateReport(String district, String school, String year, String rate_type, String year_type) +1110
   system.doe.gradrate.classes.gradratebyorgreport.GradRateByOrgReportClass.getAllGradRateReports(GradRateBean bGrad) +149
   ASP.grad_grad_report_aspx.Page_Load(Object Sender, EventArgs E) +3990
   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