# error message psych toolbox download for Mac OS X 10.6

**URL:** https://psychtoolbox.discourse.group/t/error-message-psych-toolbox-download-for-mac-os-x-10-6/588
**Category:** Uncategorized
**Created:** [May 22, 2013, 1:33am UTC](https://psychtoolbox.discourse.group/t/error-message-psych-toolbox-download-for-mac-os-x-10-6/588 "2013-05-22T01:33:07Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![Allen\_Ingling](https://avatars.discourse-cdn.com/v4/letter/a/a183cd/32.png) [@Allen\_Ingling](https://psychtoolbox.discourse.group/u/Allen_Ingling)
#### Post date: [May 22, 2013, 1:33am UTC](https://psychtoolbox.discourse.group/t/error-message-psych-toolbox-download-for-mac-os-x-10-6/588/1 "2013-05-22T01:33:07Z")

</div>

Hello,  
  
I have MATLAB\_R2012a for Mac OS X 10.6+ downloaded. I followed the  
installation instructions for Mac on your website - I've downloaded  
Subversion-1.6.17-1\_10.6x.pkg, I saved the Psychtoolbox installer to my  
desktop and read the instructions. When I typed in cd ~/Desktop and  
DownloadPsychtoolbox into the command window, this error message appears:  
  
Error validating server certificate for 'https://github.com:443':  
 - The certificate is not issued by a trusted authority. Use the  
 fingerprint to validate the certificate manually!  
Certificate information:  
 - Hostname: github.com  
 - Valid: from Fri, 27 May 2011 00:00:00 GMT until Mon, 29 Jul 2013  
12:00:00 GMT  
 - Issuer: www.digicert.com, DigiCert Inc, US  
 - Fingerprint: ce:67:99:25:2c:ac:78:12:7d:94:b5:62:2c:31:c5:16:a6:34:73:53  
(R)eject, accept (t)emporarily or accept (p)ermanently?  
  
I've tried rebooting my computer. I also looked on the forums - a similar  
question was posted but never really resolved. Not really sure how to  
proceed from here...  
  
Thanks,  
Annie

---

<div class="post-metadata">

### Author: ![mariokleiner](https://avatars.discourse-cdn.com/v4/letter/m/13edae/32.png) [@mariokleiner](https://psychtoolbox.discourse.group/u/mariokleiner)
#### Post date: [May 22, 2013, 8:47am UTC](https://psychtoolbox.discourse.group/t/error-message-psych-toolbox-download-for-mac-os-x-10-6/588/2 "2013-05-22T08:47:06Z")

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The DownloadPsychtoolbox script provides instructions on what to do if you see this. Read the output carefully.  
-mario  
  

> --- In psychtoolbox@yahoogroups.com, aichen@... wrote:  
> \>  
> \> Hello,  
> \>   
> \> I have MATLAB\_R2012a for Mac OS X 10.6+ downloaded. I followed the  
> \> installation instructions for Mac on your website - I've downloaded  
> \> Subversion-1.6.17-1\_10.6x.pkg, I saved the Psychtoolbox installer to my  
> \> desktop and read the instructions. When I typed in cd ~/Desktop and  
> \> DownloadPsychtoolbox into the command window, this error message appears:  
> \>   
> \> Error validating server certificate for 'https://github.com:443':  
> \> - The certificate is not issued by a trusted authority. Use the  
> \> fingerprint to validate the certificate manually!  
> \> Certificate information:  
> \> - Hostname: github.com  
> \> - Valid: from Fri, 27 May 2011 00:00:00 GMT until Mon, 29 Jul 2013  
> \> 12:00:00 GMT  
> \> - Issuer: www.digicert.com, DigiCert Inc, US  
> \> - Fingerprint: ce:67:99:25:2c:ac:78:12:7d:94:b5:62:2c:31:c5:16:a6:34:73:53  
> \> (R)eject, accept (t)emporarily or accept (p)ermanently?  
> \>   
> \> I've tried rebooting my computer. I also looked on the forums - a similar  
> \> question was posted but never really resolved. Not really sure how to  
> \> proceed from here...  
> \>   
> \> Thanks,  
> \> Annie  
> \>