Session is invalid error in cfapplication.

Posted on 2004-10-07
Last Modified: 2013-12-24
The following error is returned by the cfapplication tag: Session is invalid

This error occurs randomly and has nothing to do with the variables not being declared.

Our session variables are enabled and we use J2EE session variables. Could the J2EE session variables be causing problems?

Also we noticed that the session variables are sometime lost when opening a new window with javascript in IE or when downloading generated Excel documents. Are these related?

Question by:DJ_Back-Q
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
LVL 35

Expert Comment

ID: 12253015
COuld the session timeout be too short?

You can put a test on the page

<cfif IsDefined("Session")>

Author Comment

ID: 12254666
This happens in the cfapplication tag. There is not even one session variable defined yet.
LVL 14

Expert Comment

by:Renante Entera
ID: 12255353
Hello DJ_Back-Q!

Can you post your code of your file "Application.cfm"?  Perhaps, we need to view it in order for us to investigate the cause of error.

Then do what mrichmon posted, you can have do.  Let's say, you are checking for the existence of ''

<cfif IsDefined('')>
  Not exists...

eNTRANCE2002 :-)

Author Comment

ID: 12346607
We fixed the problem by disabling J2EE sessions.

Accepted Solution

RomMod earned 0 total points
ID: 12389215
The question has been PAQ'd and the 500 points have been refunded.
Community Support Moderator

Featured Post

Three Reasons Why Backup is Strategic

Backup is strategic to your business because your data is strategic to your business. Without backup, your business will fail. This white paper explains why it is vital for you to design and immediately execute a backup strategy to protect 100 percent of your data.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Introduction This article explores the design of a cache system that can improve the performance of a web site or web application.  The assumption is that the web site has many more “read” operations than “write” operations (this is commonly the ca…
When it comes to showing a 404 error page to your visitors, you do not want that generic page to show, and you especially do not want your hosting provider’s ad error page to show either. In this article, I will show you how to enable the custom 40…
Finds all prime numbers in a range requested and places them in a public primes() array. I've demostrated a template size of 30 (2 * 3 * 5) but larger templates can be built such 210  (2 * 3 * 5 * 7) or 2310  (2 * 3 * 5 * 7 * 11). The larger templa…
Attackers love to prey on accounts that have privileges. Reducing privileged accounts and protecting privileged accounts therefore is paramount. Users, groups, and service accounts need to be protected to help protect the entire Active Directory …

734 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question