# Can't dump anonymous class? Need help please!

**URL:** <https://www.ruby-forum.com/t/cant-dump-anonymous-class-need-help-please/89775>\
**Category:** Rails\
**Created:** [March 22, 2007, 6:05pm UTC](https://www.ruby-forum.com/t/cant-dump-anonymous-class-need-help-please/89775 "2007-03-22T18:05:02Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![benjohnson](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/b/3ec8ea/32.png) [@benjohnson](https://www.ruby-forum.com/u/benjohnson)\
**Post date:** [March 22, 2007, 6:05pm UTC](https://www.ruby-forum.com/t/cant-dump-anonymous-class-need-help-please/89775/1 "2007-03-22T18:05:02Z")

</div>

I am trying to Marshal.dump and object and I am getting this error:

can’t dump anonymous class #Class:0x2fadbb8

I wrote a very simple class that plugs into my rails app. Whenever I try  
to store an object of it in the session I get that error. What exactly  
does this error mean?

Thanks for your help.