Products

Solutions

Learn More

Partners

Community

Blog

About

New Community Website

Ordinarily, you'd be at the right spot, but we've recently launched a brand new community website... For the community, by the community.

Yay... Take Me to the Community!

Welcome to the DNN Community Forums, your preferred source of online community support for all things related to DNN.
In order to participate you must be a registered DNNizen

HomeHomeUsing DNN Platf...Using DNN Platf...Administration ...Administration ...Sequence contains more than one matching elementSequence contains more than one matching element
Previous
 
Next
New Post
7/17/2012 11:49 AM
 

We received the following CRITICAL error affecting all portals in our system

Exception Details: System.InvalidOperationException: Sequence contains more than one matching element

Stack Trace:

[InvalidOperationException: Sequence contains more than one matching element]
System.Linq.Enumerable.SingleOrDefault(IEnumerable'1 source, Func'2 predicate) + 735123
DotNetNuke.HttpModules.Membership.MemembershipModule.AuthenticateRequest(HttpContextBase context, Boolean allowUnknownExtensinons) +814
DotNetNuke.HttpModules.Membership.MembershipModule.OnAuthenticateRequest(Object sender, EventArgs e) +76
System.Web.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +68
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +75

Is there a fix for this issue?
What's the cause?

We were able to get past the issue by recycling the app pool


 
New Post
9/10/2012 6:29 PM
 
I have the same thing after upgrading to DNN 6.2.3. - my test site works great but my live site is throwing this exception everywhere:

Server Error in '/' Application.

Sequence contains more than one matching element

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.InvalidOperationException: Sequence contains more than one matching element

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:


[InvalidOperationException: Sequence contains more than one matching element]
System.Linq.Enumerable.SingleOrDefault(IEnumerable`1 source, Func`2 predicate) +2715502
DotNetNuke.HttpModules.Membership.MembershipModule.AuthenticateRequest(HttpContextBase context, Boolean allowUnknownExtensinons) +721
DotNetNuke.HttpModules.Membership.MembershipModule.OnAuthenticateRequest(Object sender, EventArgs e) +81
System.Web.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +148
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +75

Entrepreneur

PokerDIY Tournament Manager - PokerDIY Tournament Manager<
PokerDIY Game Finder - Mobile Apps powered by DNN
PokerDIY - Connecting Poker Players

 
New Post
9/10/2012 6:34 PM
 
It seems to have disappeared after an IISRESET

Entrepreneur

PokerDIY Tournament Manager - PokerDIY Tournament Manager<
PokerDIY Game Finder - Mobile Apps powered by DNN
PokerDIY - Connecting Poker Players

 
New Post
9/11/2012 8:04 PM
 
Note: My site suddenly went down again with this issue (and an IISReset fixed it). Is anyone else experiencing this on DNN 6.2.3? It could be more serious than I thought originally..

Entrepreneur

PokerDIY Tournament Manager - PokerDIY Tournament Manager<
PokerDIY Game Finder - Mobile Apps powered by DNN
PokerDIY - Connecting Poker Players

 
New Post
9/20/2012 4:42 AM
 
there might be an issue in your data, returning 2 records where only one is expected. it would require a dive into DNN source code to identify the proper sql statement.

Cheers from Germany,
Sebastian Leupold

dnnWerk - The DotNetNuke Experts   German Spoken DotNetNuke User Group

Speed up your DNN Websites with TurboDNN
 
Previous
 
Next
HomeHomeUsing DNN Platf...Using DNN Platf...Administration ...Administration ...Sequence contains more than one matching elementSequence contains more than one matching element


These Forums are dedicated to discussion of DNN Platform and Evoq Solutions.

For the benefit of the community and to protect the integrity of the ecosystem, please observe the following posting guidelines:

  1. No Advertising. This includes promotion of commercial and non-commercial products or services which are not directly related to DNN.
  2. No vendor trolling / poaching. If someone posts about a vendor issue, allow the vendor or other customers to respond. Any post that looks like trolling / poaching will be removed.
  3. Discussion or promotion of DNN Platform product releases under a different brand name are strictly prohibited.
  4. No Flaming or Trolling.
  5. No Profanity, Racism, or Prejudice.
  6. Site Moderators have the final word on approving / removing a thread or post or comment.
  7. English language posting only, please.

Content Layout

Subscribe to DNN Digest

Subscribe to DNN Digest

DNN Digest is our monthly email newsletter. It highlights news and content from around the DNN ecosystem, such as new modules and themes, messages from leadership, blog posts and notable tweets. Keep your finger on the pulse of the ecosystem by subscribing.  

What is Liquid Content?
Find Out
What is Liquid Content?
Find Out
What is Liquid Content?
Find Out