Instructions
Completely uninstall and reinstall oracle 12c. The installer we used was from the zip folder in \\TC4S0A\GROUPS\AARA\AARAD\Software Library\Developer Tools\Oracle, followed a standard installation, except for not installing any VS dev tools, and installed it system-wide.
Unconfigure Oracle’s GAC with the attached bat file (This is now in the \\Tc4s0a\groups\AARA\AARAD\NORMS folder)
Installed the latest ODT from Oracle’s website
Note: If you are still having issues after this step, check the machine.config file in your Entity Framework folder. If it contains the following code, comment it out, and try running NORMS again.
<section name="oracle.manageddataaccess.client" type="OracleInternal.Common.ODPMSectionHandler, Oracle.ManagedDataAccess, Version=4.122.18.3, Culture=neutral, PublicKeyToken=89b483f429c47342"/>
<oracle.manageddataaccess.client>
<version number="*">
<settings>
<setting name="NAMES.DIRECTORY_PATH" value="TNSNAMES"/>
</settings>
<dataSources>
<dataSource alias="SampleDataSource" descriptor="(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=localhost)(PORT=1521))(CONNECT_DATA=(SERVICE_NAME=ORCL))) "/>
</dataSources>
</version>
</oracle.manageddataaccess.client>
If after doing these fixes, NORMS runs but has nothing appear on the actual webpage, please see this article: How to Fix NORMS When It Displays Nothing When Running Locally
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