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Why do I get a blank selection when I try to import libraries from the V-Realm Builder in Simulink 3D Animation (formerly: Virtual Reality Toolbox)?

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I try to access some library objects by clicking on the 'Import From' menu in the Libraries menu of the V-Realm GUI. On choosing any of the libraries (Objects, Material or Textures) I do not obtain the categories for selection.
I receive the following error:
ERROR: This item's related file no longer exists.
You may edit the current item's path or delete the item.

Accepted Answer

MathWorks Support Team
MathWorks Support Team on 12 Jun 2024 at 0:00
Edited: MathWorks Support Team on 14 Jun 2024 at 3:53
================ NOTE: V-Realm Builder is only available for Windows ================
This error can occur if the vrbuild2.ini file is corrupted. The vrbuild2.ini file can get corrupted due to operations like system updates or running V-Realm independently of MATLAB.
The workaround is to replace the corrupted or empty .ini file (which is a configuration settings file) by executing the following line from MATLAB command window:
>> vrinstall -install
as per the latest installation instructions:
https://www.mathworks.com/help/sl3d/choose-a-virtual-world-editor.html
 
You can check your installation status at the MATLAB command window:
>> vrinstall -check
Further troubleshooting steps can be found in the V-Realm manual (execute from the MATLAB command window):
>> web(fullfile(matlabroot, 'toolbox', 'sl3d', 'vrealm', 'manual', 'vrealm_man.html'))
If you have custom libraries and wish to upgrade MATLAB release, you will want to save the contents of the following folder outside the MATLAB path before upgrading releases:
<matlabroot>\toolbox\sl3d\vrealm
These contents can then be copied over to the new "vrealm" folder at the same directory in the newer version of MATLAB.

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