Error System.Data.OracleClient requires Oracle client software version 8.1.7 or greater when installs setup

Volatil3 picture Volatil3 · Oct 14, 2013 · Viewed 118k times · Source

I have made a desktop app Setup that connects with remote Oracle 10g Database. When I install Setup on remote machine and run my application then I get following error:

system.data.oracleclient requires oracle client software version 8.1.7 or greater

It works well on my Development machine.

Answer

Javysk picture Javysk · Jul 31, 2015

It is a security issue, so to fix it simply do the following:

  1. Go to the Oracle Client folder.
  2. Right Click on the folder.
  3. On security Tab, Add "Authenticated Users" and give this account Read & Execute permission.
  4. Apply this security for all folders, Subfolders and Files (IMPORTANT).
  5. Don't Forget to REBOOT your Machine; if you forgot to do this you will still face the same problem unless you restart your machine.

http://blogs.msdn.com/b/fabdulwahab/archive/2011/11/13/system-data-oracleclient-requires-oracle-client-software-version-8-1-7-or-greater.aspx