Summary

The initial Oracle database connection fails.

Cause

Missing authorization.

Solution

Start the PerformerSuite.exe as Administrator.

Error (could not resolve the connect identifier specified)

ORA-12154: TNS: could not resolve the connect identifier specified
ORA-12154: TNS: Angegebener Connect Identifier konnte nicht aufgelöst werden

Cause

The Performer Suite cannot translate your entered Oracle hostname into an IP.
Normally the file TNSNAMES.ORA is responsible for this translation (path: $ORACLE_HOME/network/admin), but unfortunately, Performer Suite cannot use this file.

Solution

Try to enter the real IP as "server name", e.g. 12.345.678.910:1521
If it still does not connect 12.345.678.910:1521/<ServiceName>
Or even the complete connection string. (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=<host>) (PORT=<port>))(CONNECT_DATA=(SERVICE_NAME=<serviceName>))
Described in more detail here: ORACLE: Configure connection

Error (connection could not be established)

Error, the connection could not be established.

'System.InvalidOperationException: Attempt to load Oracle client libraries threw BadImageFormatException.
This problem will occur when running in 64 bit mode with the 32 bit Oracle client components installed.

Cause

Your Performer Suite BIT-version is incompatible with your Oracle Client.

Solution

Install the same BIT-version for the Performer Suite and the Oracle Client.
i.e. 64-bit Performer Suite ↔ 64-bit Oracle Client

Error (requires Oracle client software version 8.1.7 or greater)

PerformerSuite.log (C:\Users\<USER>\Documents\Performer Suite\Log)
writes the following line:

'System.Exception: System.Data.OracleClient requires Oracle client software version 8.1.7 or greater.

Cause

Oracle Client folder missing permissions.

Solution

Go to the Oracle Client folder.
Right-click on the folder → Properties → Security
Add “Authenticated Users” and give this account Read & Execute permission.
Apply this security for all folders, subfolders, and files (IMPORTANT).
REBOOT your machine (if you don't do this you will still face the same problem)

Solution 2

Set your environment variable to the Oracle Client path

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