12.2.4 Error Page On HomePage "Error Page You have encountered an unexpected error. Please contact the System Administrator for assistance". Forms access fails (Doc ID 1948274.1)

Last updated on JULY 15, 2016

Applies to:

Oracle Applications DBA - Version 12.1.3 to 12.2.5 [Release 12.1 to 12.2]
Information in this document applies to any platform.
Upgraded to 12.2.3 or 12.2.4
"Error Page You have encountered an unexpected error. Please contact the System Administrator for assistance".
Also connections to Forms fail.

EBS Technology Codelevel Checker (ETCC) shows patches are correctly applied.
Autoconfig completes with success.

Symptoms

When logged in to 12.2.3 or 12.2.4 there is an error displayed on the home page " "Error Page You have encountered an unexpected error. Please contact the System Administrator for assistance. "
Attempts to connect to forms applications also fail.

Connections to Forms fail.

Refreshing the page once logged in enables navigation to continue normally.

The error is not IE9 specific. The error is reproducible on at least IE8, IE9, FF24.4, Chrome34.

Changes

 Upgrade to 12.2.4 or upgrade to 12.2.3.

Cause

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