# Authentication error

**URL:** <https://forums.sketchup.com/t/authentication-error/22793>\
**Category:** 3D Warehouse\
**Tags:** authenticationerror\
**Created:** [March 29, 2016, 1:35pm UTC](https://forums.sketchup.com/t/authentication-error/22793 "2016-03-29T13:35:14Z")\
**Posts on this page:** 1\
**Showing post:** 7

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**Author:** ![Barry](https://sea2.discourse-cdn.com/sketchup/user_avatar/forums.sketchup.com/barry/32/1204_2.png) [@Barry](https://forums.sketchup.com/u/Barry)\
**Post date:** [March 29, 2016, 9:30pm UTC](https://forums.sketchup.com/t/authentication-error/22793/7 "2016-03-29T21:30:06Z")

</div>

They is we. Click on the Home. If you’re logged in, log out. Log back in.

If you’re unable to do that, quit SketchUp, go to C:\Users\YOUR\_USER\_NAME\AppData\Roaming\SketchUp\SketchUp 2015\ and remove cookiejar.xml and session.dat (if they exist). Restart SketchUp, and see if it helps.

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