# Psychtoolbox locked and svn issues

**URL:** <https://psychtoolbox.discourse.group/t/psychtoolbox-locked-and-svn-issues/338>\
**Category:** Uncategorized\
**Created:** [April 17, 2013, 11:39pm UTC](https://psychtoolbox.discourse.group/t/psychtoolbox-locked-and-svn-issues/338 "2013-04-17T23:39:38Z")\
**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:** [April 17, 2013, 11:39pm UTC](https://psychtoolbox.discourse.group/t/psychtoolbox-locked-and-svn-issues/338/1 "2013-04-17T23:39:38Z")

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Having issues with updating Psychtoolbox. Earlier I had begun the process of updating by typing in the requisite command. However, my internet had cut off and the update stopped. After regaining my internet connection, I waited to see if the update would resume but it hadn't. I closed my laptop assuming I could update it all again later. Well, I have attempted to restart the update to no avail as I am met with this error message:  
  
"\>\> UpdatePsychtoolbox  
UpdatePsychtoolbox(' C:\toolbox\Psychtoolbox ')   
  
About to update your working copy of the OpenGL-based Psychtoolbox-3.  
Will execute the following update command:  
svn update "C:\toolbox\Psychtoolbox"  
svn: E155004: Working copy 'C:\toolbox\Psychtoolbox' locked.   
svn: E155004: 'C:\toolbox\Psychtoolbox' is already locked.   
svn: run 'svn cleanup' to remove locks (type 'svn help cleanup' for details)   
Sorry. The update command failed:  
svn: E155004: Working copy 'C:\toolbox\Psychtoolbox' locked.  
svn: E155004: 'C:\toolbox\Psychtoolbox' is already locked.  
svn: run 'svn cleanup' to remove locks (type 'svn help cleanup' for details)  
  
??? Error using ==\> UpdatePsychtoolbox at 169  
Update failed."  
  
Somewhere in there is the option to perform "svn cleanup" however when I enter that command in MATLAB I am met with this:  
  
"\>\> svn cleanup ??? Undefined function or method 'svn' for input arguments of type 'char'."  
  
When I typed in, "svn help command" I was met with:  
  
"\>\> svn help cleanup ??? Undefined function or method 'svn' for input arguments of type 'char'."  
  
My questions are:  
  
1. Why is my Psychtoolbox now locked?   
2. How do I unlock it?   
3. What is svn?   
4. What am I doing wrong?  
  
Still new to MATLAB.