Error 'OracleInternal.Common.ODTSettings.m_bUseLongIdentifiers' While adding migration

Question

When I add a code-first EF migration, I get the following error:

Field not found: 'OracleInternal.Common.ODTSettings.m_bUseLongIdentifiers'.

and the migration is not created.

I'm targeting Oracle 12c and verified my connection strings and all the configuration. The same configuration works perfectly in another project.

Answer 1

Apparently the latest stable ODP.net drivers has a bug, you need to down grade your ODP.net drivers to the previous stable version.

Try the following packages;

Install-Package Oracle.ManagedDataAccess -Version 12.1.22

Install-Package Oracle.ManagedDataAccess.EntityFramework -Version 12.1.22