# compatability of Endnote 5x with 6x

**URL:** <https://community.endnote.com/t/compatability-of-endnote-5x-with-6x/260289>\
**Category:** EndNote General\
**Created:** [April 23, 2013, 3:22pm UTC](https://community.endnote.com/t/compatability-of-endnote-5x-with-6x/260289 "2013-04-23T15:22:20Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![dbee](https://avatars.discourse-cdn.com/v4/letter/d/a8b319/32.png) [@dbee](https://community.endnote.com/u/dbee)\
**Post date:** [April 23, 2013, 3:22pm UTC](https://community.endnote.com/t/compatability-of-endnote-5x-with-6x/260289/1 "2013-04-23T15:22:20Z")

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I work on both versions of endnote however I have noticed that when I try to open a library in 6x that was created in 5x, I get an error message which any further use of the program and I have to force quit.

Any suggestions on why this might happen?

thanks

Deirdre