# Why does VP create a {unique} constraint on use case associations? **URL:** \ **Category:** General Questions/Discussions\ **Created:** [April 7, 2012, 5:43am UTC](https://forums.visual-paradigm.com/t/why-does-vp-create-a-unique-constraint-on-use-case-associations/12104 "2012-04-07T05:43:29Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![Anonymous](https://avatars.discourse-cdn.com/v2/letter/a/8491ac/32.png) [@Anonymous](https://forums.visual-paradigm.com/u/Anonymous)\ **Post date:** [April 10, 2012, 3:27pm UTC](https://forums.visual-paradigm.com/t/why-does-vp-create-a-unique-constraint-on-use-case-associations/12104/1 "2012-04-10T15:27:57Z")
This just started happening after restarting VP to configure key-board shortcuts and I have no idea how to get rid of it. Till now I was getting regular associations and now they are being annotated with {unique} constraints. How do I get rid of it? [![](https://i.imgur.com/ETygK.png) ](https://i.imgur.com/ETygK.png) ---
**Author:** ![Rain](https://forums.visual-paradigm.com/user_avatar/forums.visual-paradigm.com/rain/32/2309_2.png) [@Rain](https://forums.visual-paradigm.com/u/Rain)\ **Post date:** [April 12, 2012, 9:13pm UTC](https://forums.visual-paradigm.com/t/why-does-vp-create-a-unique-constraint-on-use-case-associations/12104/2 "2012-04-12T21:13:52Z")
This problem had been fixed and please follow the link below to update the application to latest patch to get the fix. > **[Update Visual Paradigm to Latest Patch - Visual Paradigm Know-how](https://knowhow.visual-paradigm.com/technical-support/update-to-patch/)** > > Upon receiving a problem report or request of enhancement, we do our best to make the necessary changes. You will then be suggested to update your Visual Paradigm installation to the patch release, in which the fix or enhancement has been made. In... Best regards, Rain Wong