The provider is not compatible with the version of Oracle client

Question

I\'m trying to use the Oracle ODP.NET 11g (11.1.0.6.20) Instant Client on my ASP.net project as a Data Provider but when I run the aspx pag

Answer 1

I faced a similar issue and the root cause was that GAC had 2 oracle.dataaccess versions i.e. v4.0_4.112.2.0 and v4.0_4.112.4.0 . My application was referring to v4.0_4.112.2.0 , so when I removed v4.0_4.112.4.0 from GAC, it worked fine.

GAC path : C:\Windows\Microsoft.NET\assembly\GAC_64\Oracle.DataAccess

Before :

After :

To remove a version, one can simply delete the corresponding folder from GAC.