Websydian Express - Message

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EvF012 - Error reading session data

Error message

Error in function &2: Call to function &1 failed. Status &4, session &3.

Parameters

&1 - The function that should have read the session data
&2 - The function trying to read the session data
&3 - The Session ID for which the data could not be read
&4 - The Status returned by the function &2

Description

Page generators and event handlers need basic information about the active session (authorization level etc.).
However, the function reading the session data returned an error.
As the page generator/event handler cannot execute correctly without these data it has terminated and the user has been shown a generic error.
The error could for instance be caused by a nonexistent session ID being read.
You can check whether the session exists using the menu item "Surrogate" in the administration menu.

Action

Report to the responsible developer.

Comments

This error should only occur during development - and is typically caused by the session ID not being populated in the WebInput variable of an EventHandler function.