My Oracle Support Banner

"An Unexpected Error Occurred in the Oracle Data Provider for .NET" in VS2008 When Trying To Connect With Server Explorer (Doc ID 579006.1)

Last updated on JULY 05, 2017

Applies to:

Oracle Data Provider for .NET - Version:
Oracle Developer Tools for Visual Studio .NET - Version:


After installing ODAC with Oracle Developer Tools for Visual Studio and when trying
to add connection in server explorer getting following error :

Package 'Oracle Developer Tools for Visual Studio .NET' has failed to load properly ( GUID = {D601BB95-E404-4A8E-9F24-5C1A462426CE} ).
Please contact package vendor for assistance.
Application restart is recommended, due to possible environment corruption.
Would you like to disable loading this package in the future?
You may use 'devenv /resetskippkgs' to re-enable package loading.

If you press yes, then you will get the following error :

"An unexpected error occurred in the Oracle Data Provider for .NET. Please contact the provider vendor to resolve this problem"


To view full details, sign in with your My Oracle Support account.

Don't have a My Oracle Support account? Click to get started!

In this Document

My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.