# SDK Installer: Fixing the unpacking/copying error **URL:** \ **Category:** PowerVR Insider\ **Tags:** faq\ **Created:** [November 11, 2013, 10:04am UTC](https://forums.imgtec.com/t/sdk-installer-fixing-the-unpacking-copying-error/1941 "2013-11-11T10:04:31Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![JoeDavis](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.imgtec.com/joedavis/32/71_2.png) [@JoeDavis](https://forums.imgtec.com/u/JoeDavis)\ **Post date:** [November 11, 2013, 10:04am UTC](https://forums.imgtec.com/t/sdk-installer-fixing-the-unpacking-copying-error/1941/1 "2013-11-11T10:04:31Z")
I’ve ran the SDK installer, but it keeps hitting an unpacking/copying error. Is there any way to work around this problem? ---
**Author:** ![JoeDavis](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.imgtec.com/joedavis/32/71_2.png) [@JoeDavis](https://forums.imgtec.com/u/JoeDavis)\ **Post date:** [November 11, 2013, 10:07am UTC](https://forums.imgtec.com/t/sdk-installer-fixing-the-unpacking-copying-error/1941/2 "2013-11-11T10:07:09Z")
There is a known issue with the current SDK installer caused by corruption of temporary files. Fortunately, the issue is quite rare and - so far - it has only affected a small number of users. We’re now looking into a long term fix. In the meantime, the instructions below can be followed to work around the problem: 1. Navigate to your Operating System's temporary directory (usually 'C:Users[USER]AppDataLocalTemp' on Windows, '/tmp' on OS X and Linux) 2. If they exist, delete the .bitrock folder and PAK files in this location 3. Run the installer again If you're still experiencing issues on Windows, we would recommend cleaning the entire %temp% directory. This can be done safely with the Windows Disk Cleanup tool's "Temporary files" option. If the issue still occurs after following the steps above, please [start a new discussion on our forum](http://forum.imgtec.com/categories/powervr-graphics) so we can support you.