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Unable to find an entry point named 'SyncWriteTraceOrNot' in DLL 'OraOps19.dll'.

Anderson PimentelJan 7 2022

Our servers were upgraded to Oracle 19c and now a .NET 4.8 web application throws the following exception when I call the OracleConnection.Open() method:

System.EntryPointNotFoundException: Unable to find an entry point named 'SyncWriteTraceOrNot' in DLL 'OraOps19.dll'.
   at Oracle.DataAccess.Client.OpsTrace.SyncWriteTraceOrNot()
   at Oracle.DataAccess.Client.OracleConnection.Open()
   at ASP.oracletest_aspx.__Render__control1(HtmlTextWriter __w, Control parameterContainer)

I'm using a simple aspx page for testing. Tracing is not enabled and I'm using x64 version of Oracle.DataAccess.dll (v4.122.19.1).

Added on Jan 7 2022

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