# Trying to Download Psychtoolbox on MATLAB

**URL:** <https://psychtoolbox.discourse.group/t/trying-to-download-psychtoolbox-on-matlab/1598>\
**Category:** Uncategorized\
**Created:** [August 8, 2018, 6:28pm UTC](https://psychtoolbox.discourse.group/t/trying-to-download-psychtoolbox-on-matlab/1598 "2018-08-08T18:28:22Z")\
**Posts on this page:** 1\
**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:** [August 8, 2018, 6:28pm UTC](https://psychtoolbox.discourse.group/t/trying-to-download-psychtoolbox-on-matlab/1598/1 "2018-08-08T18:28:22Z")

</div>

Just want to make sure am doing everything correctly. It's on MacOS High Sierra.

This is popping up after typing DownloadPsychtoolbox in the command window:

DownloadPsychtoolbox('/Applications','beta','')

Requested flavor is: beta

Requested location for the Psychtoolbox folder is inside: /Applications

Will use the svn client which is located in this folder: /usr/bin/

Good. Your privileges suffice for the requested installation into folder /Applications.

I will now download the latest Psychtoolbox for OSX.

Requested flavor is: beta

Target folder for installation: /Applications

The following CHECKOUT command asks the Subversion client to&nbsp;

download the Psychtoolbox:

/usr/bin/svn checkout&nbsp; https://github.com/Psychtoolbox-3/Psychtoolbox-3/branches/beta/Psychtoolbox/ "/Applications/Psychtoolbox"

Downloading. It's nearly 100 MB, which can take many minutes.&nbsp;

Alas there may be no output to this window to indicate progress until the download is complete.&nbsp;

Please be patient ...

If you see some message asking something like "accept certificate (p)ermanently, (t)emporarily? etc."

then please press the p key on your keyboard, possibly followed by pressing the ENTER key.

Undefined variable "matlab" or class "matlab.io.internal.utility.convertStringsToChars".

Error in dos (line 65)

[varargin{1:nargin}] = matlab.io.internal.utility.convertStringsToChars(varargin{:});

Error in DownloadPsychtoolbox (line 775)

&nbsp; &nbsp; [err]=system(checkoutcommand);

&nbsp;

Undefined function or variable 'rmiml.visibleInToolstrip'.

&nbsp;

Undefined function or variable 'rmiml.visibleInToolstrip'.