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ODP.NET OraOps error

user10374756Oct 22 2020

Hi,
I have a .NET 4 solution that is generating a really strange error of not founding OraOpsXX.dll
Background:
The solution is .NET 4 using ODAC 11.2.0.3 (all x64) and connecting to a 11g DB
Server is Windows 2012 R2 with ODAC 11.2.0.3 installed
All the installations (and uninstall) have been made using the CMD (with Admin privilege)
install.bat odp.net4 c:\oracle odac true
install.bat asp.net4 c:\oracle odac false
uninstall.bat all odac (when uninstalling)
We upgraded the DB to 19c
I upgraded the ODAC to 18.3, changed the references in the solution, run the solution in local -> all OK. Connects fine and I can work with the DB
I then upgraded the server to 18.3 and then loaded the new solution -> error saying cannot find OraOps18.dll
made the same with 12.2.0.1.0. Works on dev machine localhost, the server triggers error saying cannot find OraOps12.dll
I then installed 11.2.0.4 (not the original 11.2.0.3) and everything works both on local dev machine and server and I'm able to connect to the 19c DB.
Everything is x64 (I've read this could cause the error).
Any hints?
Thanks
Andrea

This post has been answered by user10374756 on Oct 22 2020
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Added on Oct 22 2020
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