Oracle: ORA-12154

[kaushalpandey]

Hi,

Getting error  while configuring the On-Premises Gateway. During Data source Setting the below error thorw. 

On other side through ODBC 64 bit i am able to connect with Database from Gateway server.

Unable to connect: We encountered an error while trying to connect to vfrecdev3.fmr.com. Details: "We could not register this data source for all gateway instances within this cluster. Please find more details below about specific errors for each gateway instance."Hide details

Activity ID:	50003b0a-e4cc-b4ca-0b47-854007985058
Request ID:	00b49394-6b4c-9d21-229c-562abd271b6c
Cluster URI:	https://wabi-us-north-central-redirect.analysis.windows.net
Status code:	400
Error Code:	DMTS_PublishDatasourceToClusterErrorCode
Time:	Wed Feb 28 2018 08:08:29 GMT-0500 (Eastern Standard Time)
Version:	13.0.4551.155

Frec_PowerBI_Gateway:	Cannot connect to the mashup data source. See error details for more information.
Underlying error code:	-2147467259
Underlying error message:	Oracle: ORA-12154: TNS:could not resolve the connect identifier specified
DM_ErrorDetailNameCode_UnderlyingHResult:	-2147467259
Microsoft.Data.Mashup.ValueError.DataSourceKind:	Oracle
Microsoft.Data.Mashup.ValueError.DataSourcePath:
Microsoft.Data.Mashup.ValueError.ErrorCode:	-2147467259
Microsoft.Data.Mashup.ValueError.Message:	ORA-12154: TNS:could not resolve the connect identifier specified
Microsoft.Data.Mashup.ValueError.Reason:	DataSource.Error

Troubleshoot connection problems

I have Installed Correct Version Of ODAC122010Xcopy_x64.